@book{47994,
	author = {WRIGHT, Tony},
	title = {Roles of Teachers and Learners /},
	publisher = {Oxford University Press,},
	year = {1991.},
	series = {Language Teaching: a Scheme for Teacher Education / [ed. by] C.N. Candlin and H.G. Widdowson},
	address = {Oxford :},
	edition = {[3rd imprint].},
	note = {1st published in 1987.},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=47994}
}