India. Central Water Commission. (1980). Refresher course for inservice engineers on hydrology for senior engineers January 19, 1981-February 5, 1981. Central Water Commission, Government of India.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումIndia. Central Water Commission. Refresher Course for Inservice Engineers on Hydrology for Senior Engineers January 19, 1981-February 5, 1981. New Delhi: Central Water Commission, Government of India, 1980.
MLA (9րդ խմբ.) ՄեջբերումIndia. Central Water Commission. Refresher Course for Inservice Engineers on Hydrology for Senior Engineers January 19, 1981-February 5, 1981. Central Water Commission, Government of India, 1980.
Զգուշացում. այս մեջբերումները միշտ չէ, որ կարող են 100% ճշգրիտ լինել.