Solem, Alan. World wide snails : biogeographical studies on non-marine mollusca / edited by Alan Solem and A.C. Van Bruggen. - Netherlands : Leiden , 1984. - ix,289p. : ill.,figs,maps,tables ; 24cm 12 plates . NULL ISBN: 9004074171 UKP 85.00 Subjects--Index Terms: SNAILS Dewey Class. No.: 594.3 / VAN/W