1. Bay ne, H. G. and J. L. Stokes: Amino acid metabolism of salmonellae. J. Bacteriol. 1961, 81, 126.
2. Conybeare, E. T. and L. H. D. Thornton: Report on the outbreak of food poisoning at Wilton due to salmonella type dublin conveyed by raw milk. Reports on public Health and medical Subjects, Gt. Brit. Ministry of Health, Lond. 1938, No. 82.
3. Edwards, P. R., D. W. Bruner and A. B. Moran: The genus salmonella: its occurrence and distribution in the United States. Bull. Kentucky Agric. Exp. Stat. 1948, 525.
4. Gilfillan, B. F., D. F. Holtman and R. T. Ross: A synthetic medium for propagation and maintenance of virulent strains of Salmonella pullorum. Poultry Sci. 1955, 34, 1283.
5. Johnson, E. A. and L. F. Rettger: A comparative study of the nutritional requirements of Salmonella typhosa, Salmonella pullorum and Salmonella gallinarum. J. Bacteriol. 1943, 45, 127.