Shaughnessy, John J. Research Methods in Psychology / By John J Shaughnessy, Eugene B Zechmeister and Jeanne S Zechmeister. - 9th. - New york : Mc Graw Hill Education(India) Private Limited, 2012. - xv, 488 p. ; 00 cm. ISBN: Subjects--Topical Terms: PSYCHOLOGY. Dewey Class. No.: 150.72 / SHA