Paul, Richard. Critical thinking : tools for taking charge of your learning and your life / Richard Paul, Linda Elder. - 3rd ed. - Boston : Pearson, 2012. - xxxii, 493 p. : col. ill. ; 23 cm. Includes bibliographical references (p. 481-482) and index. ISBN: 9780132180917 (alk. paper) RM242.41 Subjects--Topical Terms: Critical thinking.