APA ציטוט

Christopherson, R. W. (2013). Elemental geosystems (7th edition.). Pearson.

Chicago Style (17th ed.) Citation

Christopherson, Robert W. Elemental Geosystems. 7th edition. London: Pearson, 2013.

ציטוט MLA

Christopherson, Robert W. Elemental Geosystems. 7th edition. Pearson, 2013.