Cita APA (7a ed.)

Van Nostrand, J., & Wilson, J. G. (1983). The ventiled improved double-pit latrine: A construction manual for Botswana.

Cita Chicago Style (17a ed.)

Van Nostrand, John, y James G. Wilson. The Ventiled Improved Double-pit Latrine: A Construction Manual for Botswana. Washington, D.C. : World Bank, 1983.

Cita MLA (9a ed.)

Van Nostrand, John, y James G. Wilson. The Ventiled Improved Double-pit Latrine: A Construction Manual for Botswana. 1983.