Patten, Mildred L. Understanding research methods : an overview of the essentials / Mildred L. Patten and Michelle Newhart. - New York, NY : Routledge, Taylor & Francis Group, 2018. - xiii, 338 pages : Includes index. ISBN: 9780415790536 (hardback) Subjects--Topical Terms: Research Dewey Class. No.: 001.42 / Un,10