APA
Indian Standards Institution, . (1981). Guide for soil surveys for river valley projects, IS 5510-1969. New Delhi: Indian Standards Institution.
Chicago
Indian Standards Institution, . 1981. Guide for soil surveys for river valley projects, IS 5510-1969. New Delhi: Indian Standards Institution.
Harvard
Indian Standards Institution, . (1981). Guide for soil surveys for river valley projects, IS 5510-1969. New Delhi: Indian Standards Institution.
MLA
Indian Standards Institution, . Guide for soil surveys for river valley projects, IS 5510-1969. New Delhi: Indian Standards Institution. 1981.