Kenneth Helrich text Arlington Association of Official Analytical Chemists 1990 15th.- en xvii, p. 685-1298: ill.; 29 cm. Kenneth Helrich FOODS -- CHEMISTRY -- CHEMICAL ANALYSIS 543.06/OFF3 240223 20240223092405 INLIS000000000009791 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)