APA aipamena

Danielson, E. W. (1989). Earth science. New York: Macmillan Reference USA.

Chicago Style aipamena

Danielson, Eric W. Earth Science. New York: Macmillan Reference USA, 1989.

MLA aipamena

Danielson, Eric W. Earth Science. New York: Macmillan Reference USA, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.