Elkington, J., Hailes, J., & Makower, J. (1990). The green consumer. Penguin Books.
Chicagoスタイル(17版)引用形式Elkington, John, Julia Hailes, , Joel Makower. The Green Consumer. New York, N.Y., U.S.A.: Penguin Books, 1990.
MLA(9版)引用形式Elkington, John, et al. The Green Consumer. Penguin Books, 1990.
警告: この引用は必ずしも正確ではありません.