Lua APA (7ú heag.)

MUEHRCKE, P. (1972). Thematic cartography. Association of American geographers.

Lua i Stíl Chicago (17ú heag.)

MUEHRCKE, Phillip. Thematic Cartography. Washington: Association of American geographers, 1972.

Lua MLA (9ú heag.)

MUEHRCKE, Phillip. Thematic Cartography. Association of American geographers, 1972.

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