Cita APA

Perren, G. . .. (1968). Teachers of english as a second language: Their training and preparatiopn. Cambridge University Press.

Citación estilo Chicago

Perren, GE. Teachers of English as a Second Language: Their Training and Preparatiopn. Cambridge: Cambridge University Press, 1968.

Cita MLA

Perren, GE. Teachers of English as a Second Language: Their Training and Preparatiopn. Cambridge University Press, 1968.