text Zwolle W.E.J. Tjeenk Willink 1923 Bel 152 p.: ill.; 19 cm. C.A.J.M. De Gier VIROSES 631.8 631.8 GIE m INLIS000000000003807 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)