Cita APA (7th ed.)

Obeng, L. A., & Wright, F. W. (1987). The Co-composting of domestic solid and human wastes. The World Bank.

Cita Chicago (17th ed.)

Obeng, Letitia A., i Frederick W. Wright. The Co-composting of Domestic Solid and Human Wastes. Washington, D.C: The World Bank, 1987.

Cita MLA (9th ed.)

Obeng, Letitia A., i Frederick W. Wright. The Co-composting of Domestic Solid and Human Wastes. The World Bank, 1987.