528,191 REGAMEY R.H./red./ Joint OIE-IABS Symposium om Clostridial Products in Veterinary Medicine.Proceedings of the 48th Symposium org. by the Internatic nal Office of Epizootics OIE and the International Ass, of Biological Standardization and held at the Head Office of the OIE,Paris France 15-19 September 1975. Acting ed.: R.H.Regaaey, E.C.Hulse and Madeleine Sebald. Basel 1976 S.Karger 8° s. XV,nlb,1 .304,res. Developments in Biological Standardization vol. 32