Lua APA (7ú heag.)

Earle, K. W. (1936). The geological map: An elementary text book for students of geography and geology. Methuen.

Lua i Stíl Chicago (17ú heag.)

Earle, Kenneth W. The Geological Map: An Elementary Text Book for Students of Geography and Geology. London: Methuen, 1936.

Lua MLA (8ú heag.)

Earle, Kenneth W. The Geological Map: An Elementary Text Book for Students of Geography and Geology. Methuen, 1936.

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