Shors Teri Understanding viruses - Boston Jones and Bartlett Publishers USA 2009 - xxiv,639p. cm. ISBN: 9780763729325 (hbk) 2251.67 Standard No.: 242,421 Source: 161/09-10, 09/02/2010, Index International Textual Subjects--Topical Terms: MEDICINE Dewey Class. No.: L:423, P9