text Leningrad Academie des Sciences de Russie 1925 Ind viii, 326 p. : ill. ; 32 cm + Peta. viii, 326 p. : ill. ; 32 cm + Peta. KOKEN, Ernst GASTROPODA BALTIC SEA 562.9 562.9KOKg INLIS000000000024621 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)