APA (7th ed.) Zitazioa

Blume, H. (1992). Colour atlas of the surface forms of the carth. Harvard U. Pr..

Chicago Style (17th ed.) Zitazioa

Blume, Helmut. Colour Atlas of the Surface Forms of the Carth. Cambridge: Harvard U. Pr., 1992.

MLA (9th ed.) Zitazioa

Blume, Helmut. Colour Atlas of the Surface Forms of the Carth. Harvard U. Pr., 1992.