@book{26661,
	author = {Khanna, B. S. (Bhim Sen), 1915-},
	title = {Practical costing (for C.A., I.C.W.A., M. Com. and B. Com. students) /},
	publisher = {S. Chand and company,},
	year = {1985.},
	address = {New Delhi :}
}