@book{88255,
	author = {Swarup, Kanti and Gupta, P K },
	title = {Operations research},
	publisher = {Sultanchand },
	year = {2022},
	address = {New Delhi},
	edition = {20th},
	note = {A textbook for the students of Science & Technology, Economics, Accountancy and Management of all Universities, Professional Bodies and Civil Services}
}