Rugg, Gordon. A gentle guide to research methods / by Gordon Rugg and Marian Petre. - [1st. ed.] - New Delhi : Tata McGraw Hill Education Private Limited , 2010. - xiii, 238p. ; 22.7 cm. ISBN: 9780071067942 Subjects--Topical Terms: Research MethodologyData CollectionData Analysis Dewey Class. No.: 001.42 / RUGG