Lua APA (7ú heag.)

Pestana, H. R. (1972). Bibliography of congressional geology. Hafner Pub. Co.

Lua i Stíl Chicago (17ú heag.)

Pestana, Harold R. Bibliography of Congressional Geology. New York: Hafner Pub. Co, 1972.

Lua MLA (9ú heag.)

Pestana, Harold R. Bibliography of Congressional Geology. Hafner Pub. Co, 1972.

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