1. Enzootic Marasmus of Cattle and Sheep.
2. 2. Economic Advisory Council Committee on Mineral Content of Natural Pastures, Sixth Report, p.43 .
3. A NATURAL COPPER DEFICIENCY IN CATTLE RATIONS
4. 4. T. Rigg : Dept. of Sc. Ind. Res., New Zealand, Seventh Ann. Report, pp.19 -22 .
5. 5. E. S. Simpson : "Key to Mineral Groups, Species and Varieties,"1932 .