@book{17384,
	author = {Asthana, S. S.},
	title = {Economic analysis of conservation irrigation in well commanded area of Ludhiana distics},
	publisher = {Department of Agricultural Economics & Sociology,},
	year = {1966},
	address = {Ludhiana:},
	note = {"A thesis submitted to the Punjab Agricultural University for the degree of Master of Science (Agriculture & A. H.)"}
}