Berck, P., & Helfand, G. (2011). Economics of the environment: Peter Berck and Gloria Helfand. Addison - Wesley.
シカゴスタイル引用形Berck, Peter, , Gloria Helfand. Economics of the Environment: Peter Berck and Gloria Helfand. Boston: Addison - Wesley, 2011.
MLA引用形式Berck, Peter, , Gloria Helfand. Economics of the Environment: Peter Berck and Gloria Helfand. Addison - Wesley, 2011.
警告: この引用は必ずしも正確ではありません.