1. Studies on the blood copper of sheep and cows;Beck;Aust. J. Exp. Biol. Med. Sci.,1941
2. Studies on copper metabolism. XXI. The transfer of radiocopper between erythrocytes and plasma;Bush;J. Lab. Clin. Med.,1956
3. Studies in the determination and Biological Significance of Traces of Metals;Butler;D.Phil. Thesis,1952
4. Apparatus for collecting blood samples for copper estimation;Butler;Vet. Rec.,1962
5. Factors influencing the blood and plasma copper levels of sheep in swayback flocks;Butler;J. Comp. Path.,1963