APA引文
Elkington, J., Hailes, J., & Makower, J. (1990). The green consumer. Penguin Books.
Chicago Style (17th ed.) Citation
Elkington, John, Julia Hailes, and Joel Makower. The Green Consumer. New York, N.Y., U.S.A.: Penguin Books, 1990.
MLA引文
Elkington, John, et al. The Green Consumer. Penguin Books, 1990.
警告：這些引文格式不一定是100％准確.