Cunningham, W. P. (2005). Environmental science: A global concern. McGraw-Hill.
Chicagoスタイル(17版)引用形式Cunningham, William P. Environmental Science: A Global Concern. Boston: McGraw-Hill, 2005.
MLA(9版)引用形式Cunningham, William P. Environmental Science: A Global Concern. McGraw-Hill, 2005.
警告: この引用は必ずしも正確ではありません.