Teaching resources unit 8 : Invertebrates /. - Upper Saddle River : Pearson, Prentice Hall, n.d. - 216 p. : ill., some col ; 28 cm. - Prentice Hall biology . - Prentice Hall biology . ISBN: 0132034034 Subjects--Topical Terms: Biology--Study and teaching. Universal Decimal Class. No.: 21.ed.