APA (7e ed.) Bronvermelding

Williams, P. J. (1992). Women, trees, and forests in Africa: A resource guide. Environment Liaison Centre International.

Chicago (17e ed.) Bronvermelding

Williams, Paula J. Women, Trees, and Forests in Africa: A Resource Guide. Nairobi, Kenya: Environment Liaison Centre International, 1992.

MLA (9e ed.) Bronvermelding

Williams, Paula J. Women, Trees, and Forests in Africa: A Resource Guide. Environment Liaison Centre International, 1992.