APA-referens (7:e uppl.)

Hinnawi, E. E., & Hashmi, M. (1987). The state of the environment. Butterworths.

Chicago-referens (17:e uppl.)

Hinnawi, Essam E., och Manzur-ul-Haque Hashmi. The State of the Environment. London ; Boston: Butterworths, 1987.

MLA-referens (9:e uppl.)

Hinnawi, Essam E., och Manzur-ul-Haque Hashmi. The State of the Environment. Butterworths, 1987.