Engelman, R., & LeRoy, P. (1993). Sustaining water: Population and the future of renewable water supplies. Washington: Population Action International.
Cita Chicago Style (17a ed.)Engelman, Robert, y Pamela LeRoy. Sustaining Water: Population and the Future of Renewable Water Supplies. Washington: Population Action International, 1993.
Cita MLA (8a ed.)Engelman, Robert, y Pamela LeRoy. Sustaining Water: Population and the Future of Renewable Water Supplies. Washington: Population Action International, 1993.
Precaución: Estas citas no son 100% exactas.