Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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