Pechenik, Jan A. Biology of the invertebrates. / Jan A. Pechenik. - 4th. ed. - Boston : McGraw-Hill, c2000. - xiv , 578 p. : ill. (some col.) ; 29 cm. Includes glossary and index. Pb. ISBN: 007012200 Subjects--Topical Terms: Invertebrates. LC Class. No.: QL 362 / P43 2000