Active Listening : Building Skills for Understanding -Teacher's Book by Marc Helgesen, Steven Brown
Active Listening : Expanding Understanding Through Content -Student's Book 3 by Marc Helgesen, Steven Brown
Active Listening : Expanding Understanding Through Content -Teacher's Book by Marc Helgesen, Steven Brown
Active Listening : Expanding Understanding Through Content -Level 3 - Audio Cassette by Marc Helgesen, Steven Brown
Active Listening : Introducing Skills for Understanding -Student's Book 1 by Marc Helgesen, Steven Brown
Active Listening : Introducing Skills for Understanding -Teacher's Book by Marc Helgesen, Steven Brown
Active Listening : Introducing Skills for Understanding -Audio Cassettes by Marc Helgesen, Steven Brown