Ruggiero, Vincent Ryan. Thinking critically about ethical issues / Vincent Ryan Ruggiero. - 8th ed. - Dubuque : McGraw-Hill, c2011. - xiii, 208 p. ; 23 cm. Includes index. ISBN: 9780073535906 (pbk. : alk. paper) LCCN: 2010039685 Subjects--Topical Terms: Ethics. LC Class. No.: BJ1012 / .R82 2011 Dewey Class. No.: 170