एपीए उद्धरण

Bell, F. (2005). Fundamentals of engineering geology. BS Publications.

शिकागो स्टाइल उद्धरण

Bell, F.G. Fundamentals of Engineering Geology. Hyderabad: BS Publications, 2005.

एमएलए उद्धरण

Bell, F.G. Fundamentals of Engineering Geology. BS Publications, 2005.