1. A study of milk from apparently normal udders;Johns,1936
2. The relation between bacterial numbers and biochemical values in milk from streptococcus-free quarters.;Johns;Canadian J. of Res., D,1938
3. The production of milk of abnormal composition by animals free from udder streptococci;Hastings;J. Agr. Res.,1937
4. Significance of streptococci, and a high leucocyte count, H-ion concentration and chlorine content in cow's milk;Klein;J. Am. Vet. M. Ass.,1935
5. Comparison of the results of certain milk tests with the condition found on physical examination of the cow. Univ. of Penn;Klein;Vet. Extension Quarterly,1938