@book{520956,
	author = {Watson Donald S and  Markham Jesse W},
	title = {Price theory and its uses},
	publisher = {Houghton Mifflin         },
	year = {1968},
	address = {Boston},
	edition = {2},
	note = {Reprinted: Calcutta, Scientific Book Agency, 1970; Bibliography at the end of each chapter}
}