APA aipamena

Hawkins, G. (1985). U.S.A by bus and train. New York: Pantheon Books.

Chicago Style aipamena

Hawkins, Gary. U.S.A By Bus and Train. New York: Pantheon Books, 1985.

MLA aipamena

Hawkins, Gary. U.S.A By Bus and Train. New York: Pantheon Books, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.