Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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