APA (7th ed.) Zitazioa
(1977). Developments in palaeontology and stratigraphy. Elsevier.
Chicago Style (17th ed.) Zitazioa
Developments in Palaeontology and Stratigraphy. Amsterdam [usw.]: Elsevier, 1977.
MLA (9th ed.) Zitazioa
Developments in Palaeontology and Stratigraphy. Elsevier, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.