@book{18290,
	author = {Bogdan,  Robert C. & Biklen, Sari Knopp},
	title = {Qualitative Research for Education : An Introduction To Theory and Methods},
	publisher = {Allyn and Bacon},
	year = {1998},
	address = {Boston},
	edition = {Third Edition},
	note = {includes bibliographic references and index}
}