APA aipamena

Bell,, F. (2007). Engineering geology (2.). Butterworth-Heinemann.

Chicago Style aipamena

Bell,, F.G. Engineering Geology. 2. Burlington: Butterworth-Heinemann, 2007.

MLA aipamena

Bell,, F.G. Engineering Geology. 2. Butterworth-Heinemann, 2007.