Patten, Mildred L. Understanding research methods : an overview of the essentials / Mildred L. Patten and Michelle Newhart. - 10th ed. - New York, NY : Routledge, c2018. - xiv, 338 p. : ill. ; 26 cm. Includes index. ISBN: 9780415790529 (pbk.) LCCN: 2016058231 Subjects--Topical Terms: Research--Methodology. LC Class. No.: Q180.55.M4 / P38 Dewey Class. No.: 001.42 / PAT