Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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