| Title | Author | Publication | Date | Pages | Comments |
| Route von B.A. nach | anon | Sammlergemeinschaf | 1995 | 19-22 | Postal route |
| Asumpcion el | t Latein Amerika |
| Scarce Paraguay | Van den Berg, | Van den Berg list | Nov 1966 | 23 | Official variety |
| Error | George (Lowell |
| Seaposts | Gordon, Robert S. | Seaposter | Sep-Oct 1949 | 7 | Cancellations |
| Seepost am Rio de la | anon | Sammlergemeinschaf | 1988 | 15-24 | Rates |
| Plata | t Lateinamerika |
| Seepost am Rio fe la | anon | Arbeitsgemeinschaft | 1988 | 3-12 | Postal History |
| Plata | Latein Amerika, |
| Sello Particular para | anon | Revista de la | 217-219 | Red cross label and |
| la cruz roja | Sociedad Filatelica | quantities |
| Sellos del Paraguay | anon | Revista de la | 105-106 | Possible quantities |
| Sociedad Filatelica |
| Sellos del Paraguay | Latour, E. | Revista de la | 4-5 | Issues of 1879-84 |
| Sociedad Filatelica |
| Sellos del Paraguay | anon | Revista de la | Apr 1895 | 1-3 | 1892 issues |
| (Los) Emisiones de | Sociedad Filatelica |
| Sellos del Paraguay | anon | Revista de la | 89 | Fakes of the |
| Falisificados | Sociedad Filatelica | Habilitado en |
| Sellos del Paraguay: | Latour, E. | Revista de la | 3-4 | 1884 issues |
| Emisiones de 1884 á | Sociedad Filatelica |
| Sellos Oficiales del | anon | Revista de la | 150-152 | 1st issue |
| Paraguay: Primera | Sociedad Filatelica | [misleading] |
| Sellos Oficiales del | Rosauer, Roberto | Revista de la | 140-141 | 1st issue |
| Paraguay: Primera | Sociedad Filatelica | [misleading] |
| Sellos Paraguayos | Chytil, Anthony A. | Revista | XVII, #25/26 | Varieties |
| Sellos Rivadavia | Del Pont, José | Revista de la | 133-137 | Argentine Post in |
| Marcó | Sociedad Filatelica | Paraguay |
| Sentencia del Señor | anon | BOOKLET | 1912 | 32 | Faking of stamps |
| Juez del crimen |
| Serie "Homenaje al | anon | Revista Firlatelica | 60 | Quantities issued |
| Pueblo", La | Paraguaya |
| Serie "Paz del | anon | Revista Filatelica | 69 | Quantities issued |
| Chaco", La | Paraguaya |
| Servicio aero-postal | anon | Revista de la | 64 | Airmail service |
| con la Republica del | Sociedad Filatelica | details |
| Servicio de | Howat, J. N. T. | Chile Filatelico | Jun 1976 | 63-66 | Rates |
| Paquebots Britanicos |
| Servicio Postal aereo | anon | Chile Filatelico | Mar 1929 | 7 | Lindberg flight |
| entre la Zona del |
| Servico postal aereo | anon | Chile Filatelico | 1929 | 7 | Airmail service, CZ, |
| entre la zona del | Chile & Paraguay |
| Shorter Air Mail | anon | Linn's Weekly | Oct 13, 1934 | 837 | Airmail route |
| Route to South | Stamp News |
| Signos Postales del | Bose, Walter B. | Biblioteca de la | 1938 BOOK | 61//83 | Stampless period |
| Rio de la Plata | Sociedad Historia | markings |
| Sobres "Colon" de | Seifelheld, Alfredo | Chile Filatelico | Dec 1976 | 199-200 | 1892 Columbus |
| 1892 (2), Los | envelope |
| Sobres "Colon" de | Seiferheld, Alfredo | Chile Filatelico | Sep 1976 | 140-142 | 1892 Columbus |
| 1892, Los | M. | envelopes |
| Some Interesting | Missourienisi | Mekeel's | Dec 12, 1895 | 200 | General |
| Stamp Issuing |
| Some Little Known | Grapher, George | The Metropolitan | Jul 1894 | 52-53 | General |
| Stamp Issuing | Philatelist |
| Some old weeds | Tiffany, John K. | Philatelic Journal of | Jun 1889 | 192-194 | Bogus issues |
| America |
| Some Paraguay Air | Taylor, Edwin S. & | Pan American | Jul-Dec 1957 | 114-116 | Genuine & |
| Mail Stamps & Their | Cone, Richard | Philatelist | Counterfeits |
| Saturday, February 19, 2000 | Page 40 of 42 |