APA
Indian Standards Institution, . (1981). Specification for pressure reducing values for domestic water supply system, IS:9739-1981. New Delhi: Indian Standards Institution.
Chicago
Indian Standards Institution, . 1981. Specification for pressure reducing values for domestic water supply system, IS:9739-1981. New Delhi: Indian Standards Institution.
Harvard
Indian Standards Institution, . (1981). Specification for pressure reducing values for domestic water supply system, IS:9739-1981. New Delhi: Indian Standards Institution.
MLA
Indian Standards Institution, . Specification for pressure reducing values for domestic water supply system, IS:9739-1981. New Delhi: Indian Standards Institution. 1981.
