APA (7. basım) Alıntı

Engelman, R., & LeRoy, P. (1993). Sustaining water: Population and the future of renewable water supplies. Washington: Population Action International.

Chicago Style (17. basım) Atıf

Engelman, Robert, ve Pamela LeRoy. Sustaining Water: Population and the Future of Renewable Water Supplies. Washington: Population Action International, 1993.

MLA (8th ed.) Atıf

Engelman, Robert, ve Pamela LeRoy. Sustaining Water: Population and the Future of Renewable Water Supplies. Washington: Population Action International, 1993.