APA-referens

Carlson, D. H., & Plummer,Charles C. McGeary, D. (2006). Physical geology: Earth revealed (6th ed.). McGraw Hill.

Chicago-stil citat

Carlson, Diane H., och David Plummer,Charles C. McGeary. Physical Geology: Earth Revealed. 6th ed. Boston: McGraw Hill, 2006.

MLA-referens

Carlson, Diane H., och David Plummer,Charles C. McGeary. Physical Geology: Earth Revealed. 6th ed. McGraw Hill, 2006.