Freedman, B. (2001). Environmental science: A Canadian perspective. Prentice Hall.
Chicagoスタイル(17版)引用形式Freedman, Bill. Environmental Science: A Canadian Perspective. Toronto: Prentice Hall, 2001.
MLA(8版)引用形式Freedman, Bill. Environmental Science: A Canadian Perspective. Prentice Hall, 2001.
警告: この引用は必ずしも正確ではありません.