References
- Anderson , E. S. and Lewis , M. J. 1965 . Drug resistance and its transfer in Salmonella typhi-murium . Nature , 206 : 579 – 583 .
- Robinson , R. A. 1966 . Salmonellosis in young calves . N.Z. vet. J. , 14 : 33 – 39 .
- WHO . 1961 . Standardisation of methods for conducting microbic sensitivity tests . Wld. Hlth. Org. Techn. Rep. Ser. No. 210 ,
- Smith , H. Williams . 1962 . “ The effects of the use of antibiotics on the emergence of antibiotic resistant disease producing organisms in animals ” . In Antibiotics in Agriculture , Edited by: Woodbine , Malcolm . London : Butterworths . In
- Smith , H. Williams . 1966 . The incidence of infective drug resistance in strains of E. coli isolated from diseased human beings and domestic animals . J. Hyg., Camb. , 64 : 465 – 474 .
- Smith , H. Williams . 1967 . The effects of the use of antibacterial drugs, particularly as food additives, on the emergence of drug-resistant strains of bacteria in animals . N. Z. vet. J. , 15 : 153 – 166 .