Dyfyniad APA

Das, B. M. (2014). Principles of geotechnical engineering 8th Ed. Cengage Learning.

Dyfyniad Arddull Chicago

Das, Braja M. Principles of Geotechnical Engineering 8th Ed. Cengage Learning, 2014.

Dyfyniad MLA

Das, Braja M. Principles of Geotechnical Engineering 8th Ed. Cengage Learning, 2014.

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