Perrin, Robert. Pocket Guide to APA Style / Robert Perrin. - Australia : Wadsworth Cengage Learning, 2009 - x, 153 p. : ill. 21.5 cm. Includes index. ISBN: 9780495911425;0495911429 Subjects--Topical Terms: APA Style National Library of Medicine Call No.: WZ 345 / .P47 2009