@book{13570,
	author = {Wonnacott P. and Wonnacott R.},
	title = {Economics},
	publisher = {John Wiley & Sons,},
	year = {1990.},
	address = {New York(State):},
	edition = {Fourth edition},
	note = {п/7951-п/7954, п/7956-п/7969, п/8012}
}