@book{52926,
	author = {Samuelson, Paul Anthony and Nordhaus, William D. and Wydawnictwo Naukowe PWN},
	title = {Ekonomia.},
	publisher = {Wydaw. Naukowe PWN,},
	year = {1996},
	address = {Warszawa :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=52926}
}