APA
Benz C., Carlisi K., Christie S., Dworak K., Hartmann P., Fragiadakis H. K., Maurer V. & Gill M. M. (2005). Listening and speaking : instructor's manual. Boston: Thomson Heinle.
Chicago
Benz Cheryl, Carlisi Karen, Christie Susana, Dworak Kara, Hartmann Pamela, Fragiadakis Helen Kalkstein, Maurer Virginia and Gill Mary Mcvey. 2005. Listening and speaking : instructor's manual. Boston: Thomson Heinle.
Harvard
Benz C., Carlisi K., Christie S., Dworak K., Hartmann P., Fragiadakis H. K., Maurer V. and Gill M. M. (2005). Listening and speaking : instructor's manual. Boston: Thomson Heinle.
MLA
Benz Cheryl, Carlisi Karen, Christie Susana, Dworak Kara, Hartmann Pamela, Fragiadakis Helen Kalkstein, Maurer Virginia and Gill Mary Mcvey. Listening and speaking : instructor's manual. Boston: Thomson Heinle. 2005.