Peng, S., & Zhang, J. (2007). Engineering geology for underground rocks. Springer.
Čikaški stil citiranjaPeng, Suping, i Jincai Zhang. Engineering Geology for Underground Rocks. Berlin: Springer, 2007.
MLA način citiranjaPeng, Suping, i Jincai Zhang. Engineering Geology for Underground Rocks. Springer, 2007.
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