Palmer, H. E. (1968). The scientific study and teaching of languages. Oxford University Press.
Citación estilo ChicagoPalmer, Harold E. The Scientific Study and Teaching of Languages. London, England: Oxford University Press, 1968.
Cita MLAPalmer, Harold E. The Scientific Study and Teaching of Languages. Oxford University Press, 1968.
Warning: These citations may not always be 100% accurate.