W.H.O. expert committee on biological standardization World Health Organization text Geneva WHO 1970 22 nd report en 134 p.: ill.; 24 cm. World Health Organization VACCINES -- PHARMACOLOGY -- STANDARDIZATION 615.371/WOR/w 240305 20240305022501 INLIS000000000011829 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)