Botkin, D. B., & Keller, E. A. (1998). Environmental science: Earth as a living planet. Wiley.
Chicagoスタイル(17版)引用形式Botkin, Daniel B., , Edward A. Keller. Environmental Science: Earth as a Living Planet. New York: Wiley, 1998.
MLA(9版)引用形式Botkin, Daniel B., , Edward A. Keller. Environmental Science: Earth as a Living Planet. Wiley, 1998.
警告: この引用は必ずしも正確ではありません.