Montgomery, C. W. (2003). Environmental geology (6th ed.). Boston: McGraw-Hill.
शिकागो स्टाइल उद्धरणMontgomery, Carla W. Environmental Geology. 6th ed. Boston: McGraw-Hill, 2003.
एमएलए उद्धरणMontgomery, Carla W. Environmental Geology. 6th ed. Boston: McGraw-Hill, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.