@book{21630,
	author = {KWIATKOWSKI, Eugeniusz},
	title = {Teoria trzech sektorów gospodarki /},
	year = {1980.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=21630}
}