Patten, Mildred L. Understanding research methods : an overview of the essentials by Mildred L. Patten and Michelle Newhart - 10th ed. - New York: Routledge 2018 - xiii, 338p., app., ind. 25 cm x 18 cm ISBN: 9780415790529 Subjects--Topical Terms: methodologyresearch Dewey Class. No.: 001.42 / PAT