Jansen, B.C.; Knoetze, P.C.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B.
(The Government Printer, Pretoria, 1977)
Experimental evidence is produced to justify abandoning the practice of subdividing Clostridium botulinum Type C into type Cα and type Cβ.