APA
Indian Standards Institution, . (1981). Code of practice for design of cross drainage works IS:7784(partII/sec 3)-1980. New Delhi: Indian Standards Institution.
Chicago
Indian Standards Institution, . 1981. Code of practice for design of cross drainage works IS:7784(partII/sec 3)-1980. New Delhi: Indian Standards Institution.
Harvard
Indian Standards Institution, . (1981). Code of practice for design of cross drainage works IS:7784(partII/sec 3)-1980. New Delhi: Indian Standards Institution.
MLA
Indian Standards Institution, . Code of practice for design of cross drainage works IS:7784(partII/sec 3)-1980. New Delhi: Indian Standards Institution. 1981.
