Montgomery, C. W. (1992). Environmental geology (3rd ed.). Wm. C. Brown.
Lua i Stíl Chicago (17ú heag.)Montgomery, Carla W. Environmental Geology. 3rd ed. Dubuque, Iowa: Wm. C. Brown, 1992.
Lua MLA (8ú heag.)Montgomery, Carla W. Environmental Geology. 3rd ed. Wm. C. Brown, 1992.
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