Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Paige Sidney. (19). Geologic atlas of the United States. s.n.
Chicago Style (17th ed.) Zitazioa
Paige Sidney. Geologic Atlas of the United States. s.n, 19.
MLA (9th ed.) Zitazioa
Paige Sidney. Geologic Atlas of the United States. s.n, 19.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.