Ruppert, Edward E. Invertebrate zoology a functional evolutionary approach - 7th ed. - Belmont Brooks/Cole AUWSF (021179) 2004 - xvii, 963 [26] p. ISBN: 978-0-03-025982-1 Subjects--Topical Terms: Animals ProtozoaInvertebratesZoology LC Class. No.: QL362.R76