Morton, John Edward. Molluscs, [by] J. E. Morton. - 4th (revised) ed. - London, Hutchinson, 1967. - Hutchinson university library: Biological sciences . Bibliography: p. [226]-235. LCCN: 67097532 //r85 Nat. Bib. No.: B67-15830 Subjects--Topical Terms: Mollusks. LC Class. No.: QL403 / .M67 1967 Dewey Class. No.: 594