APA način citiranja

Pratt, W. P. (1995). The Midcontinent strategic and critical minerals project. US Geological Survey circular 1124.

Čikaški stil citiranja

Pratt, Walden P. "The Midcontinent Strategic and Critical Minerals Project." US Geological Survey Circular 1124 1995.

MLA način citiranja

Pratt, Walden P. "The Midcontinent Strategic and Critical Minerals Project." US Geological Survey Circular 1124 1995.

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