ISBN 019910008X books & textbook
The Oxford Book of Invertebrates: Protozoa, Sponges, Coelenterates Worms, Molluscs, Echinoderms and Arthropods
Whiteley, Derek Nichols, David Cooke, John A. L.
Oxford Univ Pr /1971T Hardcover / 218 Pages
isbn-10: 019910008X / isbn-13: 9780199100088
