APA aipamena

Foster, R. J. (1985). Geology. Columbus, Ohio: C.E. Merrill Pub. Co.

Chicago Style aipamena

Foster, Robert J. Geology. Columbus, Ohio: C.E. Merrill Pub. Co, 1985.

MLA aipamena

Foster, Robert J. Geology. Columbus, Ohio: C.E. Merrill Pub. Co, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.