The Cambridge natural history / edited by S. F. Harmer and A. E. Shipley. - Reprint ed. - London : Wheldon & Wesley, c 1968. - Vols. : ill. ; 22 cm. Includes index. V. 3- Molluscs and brachiopods ; 340 340 Subjects--Topical Terms: Zoology. Dewey Class. No.: 574 / H228c