Punch, Keith F. Introduction to social research : quantitative and qualitative approaches / Keith F. Punch. - London ; Thousand Oaks, Calif. : SAGE Publications, 1998. - xv, 319 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0761958126 0761958134 (pbk.) LCCN: 98061492 Subjects--Topical Terms: Social sciences--Research. LC Class. No.: H62 / .P93 1998 H62 / .P93 1998 Dewey Class. No.: 300/.7/2