एपीए उद्धरण

Montgomery, C. W. (2003). Environmental geology (6th ed.). Boston: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Montgomery, Carla W. Environmental Geology. 6th ed. Boston: McGraw-Hill, 2003.

एमएलए उद्धरण

Montgomery, Carla W. Environmental Geology. 6th ed. Boston: McGraw-Hill, 2003.