Cita APA (7a ed.)

Phillips, D., & Scott, I. (1990). Ruf doch mal an!: German role-play in pairs (1. publ.). Hodder & Stoughton.

Cita Chicago Style (17a ed.)

Phillips, David, y Irene Scott. Ruf Doch Mal an!: German Role-play in Pairs. 1. publ. London [u.a.]: Hodder & Stoughton, 1990.

Cita MLA (9a ed.)

Phillips, David, y Irene Scott. Ruf Doch Mal an!: German Role-play in Pairs. 1. publ. Hodder & Stoughton, 1990.