APA aipamena

Smithsonian Contributions To The Earth Sciences. Washington Dc: Smithsonian Press.

Chicago Style aipamena

Smithsonian Contributions To The Earth Sciences. Washington Dc: Smithsonian Press.

MLA aipamena

Smithsonian Contributions To The Earth Sciences. Washington Dc: Smithsonian Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.