De Blij, H. J., & Muller, P. O. (2010). Geography: Realms, regions, and concepts (14th ed.). Wiley.
Chicago Style (17th ed.) CitationDe Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions, and Concepts. 14th ed. Hoboken, N.J: Wiley, 2010.
MLA (9th ed.) CitationDe Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions, and Concepts. 14th ed. Wiley, 2010.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.