APA citiranje

Clifford, T. (2009). Rourke's World of Science ENCYCLOPEDIA: Volume 4 - Earth Science. Rourke Publishing.

Chicago Style (17th ed.) Citation

Clifford, Tim. Rourke's World of Science ENCYCLOPEDIA: Volume 4 - Earth Science. Rourke Publishing, 2009.

MLA citiranje

Clifford, Tim. Rourke's World of Science ENCYCLOPEDIA: Volume 4 - Earth Science. Rourke Publishing, 2009.

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