एपीए उद्धरण

Rajapakse, R. (2008). Geotecnical engineering calculations and rules of thumb. Butterworth-Heinemann.

शिकागो स्टाइल उद्धरण

Rajapakse, Ruwan. Geotecnical Engineering Calculations and Rules of Thumb. Burlington: Butterworth-Heinemann, 2008.

एमएलए उद्धरण

Rajapakse, Ruwan. Geotecnical Engineering Calculations and Rules of Thumb. Butterworth-Heinemann, 2008.