The Enterobacteriaceae Subcommittee of the Nomenclature Committee of the International Association of Microbiologists Reports of the Enterobacteriaceae Sub-Committee on the groups Salmonella, Shigella, Arizona, Bethesda, Ballerup, Escherichia, Alkalescens-Dispar, Klebsiella, and Proteus in Rio de Janeiro, August, 1950 p. 1–45 https://doi.org/10.1099/0096266X-4-1-1
The Enterobacteriaceae Subcommittee of the Nomenclature Committee of the International Association of Microbiologists Reports on the Groups: Salmonella, Shigella, Arizona, Bethesda, Escherichia, Klebsiella (Aerogenes, Aerobacter), Providence (29911 of Stuart et al.) p. 47–93 https://doi.org/10.1099/0096266X-4-1-47