Jackson, Debra Critical thinking : a user’s manual / Debra Jackson & Paul Newberry - Boston, MA : Wadsworth Cengage Learning, c2012 - xvii, 344 p. : ill. (col.) ; 26 cm. Includes index ISBN: 9780495814078 (pbk.) 0495814075 (pbk.) Subjects--Topical Terms: Critical thinking--Textbooks