Perren, G. (1968). Teachers of English as a second language: Their training and preparation. Cambridge University Press.
Cita Chicago (17th ed.)Perren, G.E. Teachers of English as a Second Language: Their Training and Preparation. [London]: Cambridge University Press, 1968.
Cita MLA (9th ed.)Perren, G.E. Teachers of English as a Second Language: Their Training and Preparation. Cambridge University Press, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.