APA aipamena

Graver, B. D. (1986). Advanced English practice. New York: Oxford University Press.

Chicago Style aipamena

Graver, B. D. Advanced English Practice. New York: Oxford University Press, 1986.

MLA aipamena

Graver, B. D. Advanced English Practice. New York: Oxford University Press, 1986.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.