text London Roche 1972 Ind 51 p.: ill.; 25 cm 51 p.: ill.; 25 cm SEMINAR ON THE MICRO-NUTRIENTSIN POULTRY NUTRITION (1972 : London) FEEDS TRACE ELEMENTS 636.085 636.085SEMm INLIS000000000029593 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)