Bogdan, Robert C. Qualitative research for education : an introduction to theory and methods / Robert C. Bogdan, Sari Knopp Bicklen. - 2nd ed. - Allyn and Bacon, c1992. - x, 262p. : ill. ; 23 cm. Includes bibliographical references and index. ISBN: 0205132669 Subjects--Topical Terms: Education--Research LC Class. No.: LB1028 / B63 1992