Cita APA (7a ed.)

Consejo de Europa & Richterrich, R. (1983). Case studies in identifying language needs. Pergamon press.

Cita Chicago Style (17a ed.)

Consejo de Europa y Rene Richterrich. Case Studies in Identifying Language Needs. Oxford [etc.]: Pergamon press, 1983.

Cita MLA (9a ed.)

Consejo de Europa y Rene Richterrich. Case Studies in Identifying Language Needs. Pergamon press, 1983.