Invertebrate zoology : a functional evolutionary approach / Edward E. Ruppert, Richard S. Fox, Robert D. Barnes. Ruppert, Edward E. Fox, Richard S. jt. auth. Barnes, Robert D. jt. auth. Invertebrates. QL362 .R76 2004 592 22 RUI Includes bibliographical references and index. Belmont, CA : Brooks/Cole, Cengage Learning, 2004. 2004. 2004 Text 963, p. in various pagings : eng