APA
Johnson C. R., . (1976). Standards and procedures for the design of water supply systems in rural areas f Nepal and bhutan. Kathmandu: .
Chicago
Johnson Carl R, . 1976. Standards and procedures for the design of water supply systems in rural areas f Nepal and bhutan. Kathmandu: .
Harvard
Johnson C. R., . (1976). Standards and procedures for the design of water supply systems in rural areas f Nepal and bhutan. Kathmandu: .
MLA
Johnson Carl R, . Standards and procedures for the design of water supply systems in rural areas f Nepal and bhutan. Kathmandu: . 1976.