@book{19531,
	author = {MALMSTADT, Howard V. and ENKE, Christie G.},
	title = {Control of Electrical Quantities in Instrumentation /},
	publisher = {W.A.Benjamin Inc.,},
	year = {1973.},
	address = {Menlo Park, California :},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=19531}
}