Trace element metabolism in man and animals proceedings of the Fourth International Symposium on Trace Element Metabolism in Man and Animals (TEMA-4), held in Perth, Western Australia 11-15 May 1981 - Howell, J. McC. (John McC.); Gawthorne, J. M. (Jeffrey M.); White, C. L. (Colin L.), 1949- (Australian Academy of Science, 1981)