Williams, P. J. (1992). Women, trees, and forests in Africa: A resource guide. Environment Liaison Centre International.
Dyfyniad Arddull ChicagoWilliams, Paula J. Women, Trees, and Forests in Africa: A Resource Guide. Nairobi, Kenya: Environment Liaison Centre International, 1992.
Dyfyniad MLAWilliams, Paula J. Women, Trees, and Forests in Africa: A Resource Guide. Environment Liaison Centre International, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.