@book{15758,
	author = {Bell, Philip W. and Todaro, Michael P.},
	title = {Economic theory : an integrated text with special reference to developing areas /},
	publisher = {Oxford university,},
	year = {1973.},
	series = {Series of undergraduate teaching works in economics, v. 4},
	edition = {1st},
	note = {Bibliographical footnotes.and index}
}