Ary, Donald, Introduction to research in education / Donald Ary, Lucy Cheser Jacobs, Christine K. Sorensen Irvine, David A. Walker. - Tenth edition. Student edition. - xiv, 588 pages : illustrations (some colour) ; 29 cm Previous edition: 2014 Includes bibliographical references and index. ISBN: 9781337566001 Subjects--Topical Terms: Education--Research. Dewey Class. No.: 370.7 / ARY 2019