text Gravenhage Waltmen 1949 Ind xix, 498 p.: ill.; 24 cm. xix, 498 p.: ill.; 24 cm. KLOPPER, J. MECHANICS 531 531KLOl INLIS000000000009318 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)