APA aipamena

Crystal ,David. (1971). Linguisics. Penguin Books, England.

Chicago Style aipamena

Crystal ,David. Linguisics. Penguin Books, England: Penguin Books, England, 1971.

MLA aipamena

Crystal ,David. Linguisics. Penguin Books, England, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.