Cita APA

Percil, J., & Gray, J. (1988). Prospects: An advanced course teacher's book. Penguin Books.

Citación estilo Chicago

Percil, John, and Joanna Gray. Prospects: An Advanced Course Teacher's Book. London: Penguin Books, 1988.

Cita MLA

Percil, John, and Joanna Gray. Prospects: An Advanced Course Teacher's Book. Penguin Books, 1988.

Warning: These citations may not always be 100% accurate.