Engelman, R., & LeRoy, P. (1993). Sustaining water: Population and the future of renewable water supplies. Washington: Population Action International.
Chicago Style (17th ed.) CitationEngelman, Robert, and Pamela LeRoy. Sustaining Water: Population and the Future of Renewable Water Supplies. Washington: Population Action International, 1993.
MLA引文Engelman, Robert, and Pamela LeRoy. Sustaining Water: Population and the Future of Renewable Water Supplies. Washington: Population Action International, 1993.
警告：這些引文格式不一定是100％准確.