Govier, Trudy. A practical study of argument / Trudy Govier. - 7th ed. - Belmont, CA : Cengage Learning, 2010. - xiii, 417 p. ; 24 cm. Includes bibliographical references and index. ISBN: 9780495603405 (pbk.) RM422.08 0495603406 Subjects--Topical Terms: Reasoning.Logic.