1. Cowie A. T. The Pituitary Gland, G. W. Harris, B. T. Donovan. Butterworths, London (1966); vol. 2: 412–443
2. Cowie A. T. Lactogenesis, M. Reynolds, S. J. Folley. University of Pennsylvania Press, Philadelphia (1969); 157–169
3. Section A. Physiology. Hormonal control of lactogenesis