Christopherson, R. W. (2013). Elemental geosystems (7th edition.). Pearson.
Chicagoスタイル(17版)引用形式Christopherson, Robert W. Elemental Geosystems. 7th edition. London: Pearson, 2013.
MLA(8版)引用形式Christopherson, Robert W. Elemental Geosystems. 7th edition. Pearson, 2013.
警告: この引用は必ずしも正確ではありません.