na INLIS000000000029593 Ind 0010-1218011431 Micro-nutrients in poultry nutrition: seminar, Tuesday, 7 March 1972, London SEMINAR ON THE MICRO-NUTRIENTSIN POULTRY NUTRITION (1972 : London) Organised by Roche London Roche 1972 51 p.: ill.; 25 cm 51 p.: ill.; 25 cm 636.085SEMm 636.085 FEEDS TRACE ELEMENTS 982/76-mfn31917 982/76-mfn33734