Cita APA

English Language Services, & English Language Services. (1969). Teacher's manual and key to books 1-6: English this way. London, Sydney: Collier Macmillan.

Citación estilo Chicago

English Language Services, y English Language Services. Teacher's Manual and Key to Books 1-6: English This Way. London, Sydney: Collier Macmillan, 1969.

Cita MLA

English Language Services, y English Language Services. Teacher's Manual and Key to Books 1-6: English This Way. London, Sydney: Collier Macmillan, 1969.