Graziano, Anthony M. Research methods : a process of inquiry. - 4th ed. - Boston : Allyn & Bacon, 1999. - xxiv,456p. : ill. ; 24cm. Includes bibliographical references and index. ISBN: 0-321-04993-4 Subjects--Topical Terms: Research, Methodology LC Class. No.: Q180.55.M4G7 1999