R. Bieler & P. M. Mikkelsen (Sci.Ed.); J. S. Bhatti (Transl.); J. Thiele: Handbuch der systematischen Weichtierkunde. English: Handbook of systematic malacology. Publ: Washington, D.C.; Smithsonian Institution Libraries; National Science Foundation; 1992-.Content:pt. 1. Loricata; Gastropoda: Prosobranchia -- pt. 2. Gastropoda: Opisthobranchia and Pulmonata -- pt. 3. Scaphopoda / Bivalvia / Cehalopoda -- pt. 4. Comparative Morphology / Phylogeny / Geographical Distribution. OCLC680545970.