APA aipamena

Colson, G. (1973). Voice production and speech. Pitman.

Chicago Style aipamena

Colson, Greta. Voice Production and Speech. Pitman, 1973.

MLA aipamena

Colson, Greta. Voice Production and Speech. Pitman, 1973.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.