Van Nostrand, J. C., & Wilson, J. G. (1983). The ventilated improved double pit latrine: A construction manual for Botswana. The World Bank.
Chicago Style (17th ed.) CitationVan Nostrand, John Cornelius, and J. G. Wilson. The Ventilated Improved Double Pit Latrine: A Construction Manual for Botswana. Washington, D.C: The World Bank, 1983.
MLA (9th ed.) CitationVan Nostrand, John Cornelius, and J. G. Wilson. The Ventilated Improved Double Pit Latrine: A Construction Manual for Botswana. The World Bank, 1983.
Warning: These citations may not always be 100% accurate.