Introduction to Space Flight; Francis J. Hale; Hardcover; $85.00 (Special Order); Descriptive information available. Orbital Mechanics; John E. Prussing, Bruce A. Conway; Hardcover; $40.00 (Special Order) Orbital Mechanics (Aiaa Education Series); Vladimir A. Chobotov(Editor); Hardcover; $89.95 (Back Ordered) Orbital Mechanics (Orbit, a Foundation Series); Richard G.Madonna; Hardcover; $55.13 (Special Order) Orbital Mechanics and Mission Design (Advances in the Astronautical Sciences, Vol 69); H. Jacobs (Editor); Paperback;$80.00 (Special Order) Orbital Mechanics and Mission Design (Advances in the Astronautical Sciences, Vol 69); Jerome Teles (Editor); Hardcover; $95.00 (Special Order) Orbital Mechanics (Education Series); V. A. Chobotov; Hardcover(Hard to Find)