एपीए उद्धरण

Montgomery, C. W. (1989). Environmental geology/2nd ed (2nd ed.). WMC Brown.

शिकागो स्टाइल उद्धरण

Montgomery, Carla W. Environmental Geology/2nd Ed. 2nd ed. USA: WMC Brown, 1989.

एमएलए उद्धरण

Montgomery, Carla W. Environmental Geology/2nd Ed. 2nd ed. WMC Brown, 1989.