@book{47749,
	author = {Heaton, John Brian.},
	title = {Classroom testing /},
	publisher = {Longman,},
	year = {1991},
	series = {Longman keys to language teaching / [ed. by] Neville Grant},
	address = {London :},
	edition = {[4th impr.].},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=47749}
}