APA aipamena

(1982). World English ( Teacher's book ). Orlando, FL: Harcourt, Brace International.

Chicago Style aipamena

World English ( Teacher's Book ). Orlando, FL: Harcourt, Brace International, 1982.

MLA aipamena

World English ( Teacher's Book ). Orlando, FL: Harcourt, Brace International, 1982.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.