APA (7th ed.) Citation

Ryan, B. A. (1983). Ventilated improved pit latrines: Vent pipe design guidelines. IBRD/World Bank.

Chicago Style (17th ed.) Citation

Ryan, Beverley A. Ventilated Improved Pit Latrines: Vent Pipe Design Guidelines. Washington, D.C: IBRD/World Bank, 1983.

MLA (9th ed.) Citation

Ryan, Beverley A. Ventilated Improved Pit Latrines: Vent Pipe Design Guidelines. IBRD/World Bank, 1983.

Warning: These citations may not always be 100% accurate.