Mara, D. D. (1984). The design of ventilated improved pit latrines. IBRD/World Bank.
Chicago Style (17th ed.) CitationMara, D. Duncan. The Design of Ventilated Improved Pit Latrines. Washington, D.C: IBRD/World Bank, 1984.
MLA (9th ed.) CitationMara, D. Duncan. The Design of Ventilated Improved Pit Latrines. IBRD/World Bank, 1984.
Warning: These citations may not always be 100% accurate.