Dyfyniad APA

Peng, S., & Zhang, J. (2007). Engineering geology for underground rocks. Springer.

Dyfyniad Arddull Chicago

Peng, Suping, and Jincai Zhang. Engineering Geology for Underground Rocks. Berlin: Springer, 2007.

Dyfyniad MLA

Peng, Suping, and Jincai Zhang. Engineering Geology for Underground Rocks. Springer, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.