Singh S.P. Research methods in social sciences Manual for designing questionnaires - New Delhi Kanishka Pub. India 2009 - 268p. cm. ISBN: 8173914834 (hbk) 550 Standard No.: 245,773 Source: 01508, 21/02/2011, Kanishka Publishers Distributors Textual Subjects--Topical Terms: SOCIAL SCIENCES Dewey Class. No.: #:f, P2