Punch, Keith F. Introduction to social research : quantitative and qualitative approaches / Keith F. Punch. - Rep. - London: Thousand Oaks, Calif, SAGE Publications, c1998. - xv, 319 p.: ill.; 25 cm. Includes bibliographical references (p.295-308) and index. Includes bibliographical references and index. Dept. of Sociology ISBN: 0761958126 0761958134 (pbk.) Subjects--Topical Terms: Social sciences--Research. Dewey Class. No.: 300.72 / PUI