Van Nostrand, J. C., & Wilson, J. G. (1983). Rural ventilated improved pit latrines: A field manual for Botswana. International Bank for Reconstruction and Development.
Chicago-Zitierstil (17. Ausg.)Van Nostrand, John Cornelius, und James G. Wilson. Rural Ventilated Improved Pit Latrines: A Field Manual for Botswana. Washington, D.C: International Bank for Reconstruction and Development, 1983.
MLA-Zitierstil (9. Ausg.)Van Nostrand, John Cornelius, und James G. Wilson. Rural Ventilated Improved Pit Latrines: A Field Manual for Botswana. International Bank for Reconstruction and Development, 1983.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.