APA
Roy A. K., United Nations Development Programme, . (1984). Manual on the design, construction and maintenance of low-cost pour-flush waterseal latrines in India. Washington, DC: World Bank.
Chicago
Roy A K, United Nations Development Programme, . 1984. Manual on the design, construction and maintenance of low-cost pour-flush waterseal latrines in India. Washington, DC: World Bank.
Harvard
Roy A. K., United Nations Development Programme, . (1984). Manual on the design, construction and maintenance of low-cost pour-flush waterseal latrines in India. Washington, DC: World Bank.
MLA
Roy A K, United Nations Development Programme, . Manual on the design, construction and maintenance of low-cost pour-flush waterseal latrines in India. Washington, DC: World Bank. 1984.