APA (7th ed.) Citation

Ryan, B. A. (1983). Pit latrine ventilation: Field investigation methodology. IBRD/World Bank.

Chicago Style (17th ed.) Citation

Ryan, Beverley A. Pit Latrine Ventilation: Field Investigation Methodology. Washington, D.C: IBRD/World Bank, 1983.

MLA (9th ed.) Citation

Ryan, Beverley A. Pit Latrine Ventilation: Field Investigation Methodology. IBRD/World Bank, 1983.

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