एपीए उद्धरण

Das, B. M. (2010). Principles of geotechnical engineering. Mason, OH: Cengage Learning.

शिकागो स्टाइल उद्धरण

Das, Braja M. Principles of Geotechnical Engineering. Mason, OH: Cengage Learning, 2010.

एमएलए उद्धरण

Das, Braja M. Principles of Geotechnical Engineering. Mason, OH: Cengage Learning, 2010.