Moreno, G. et al. 1997. Incidence and characterization of mastitic bovine milk antimicrobial multi-drug resistant bacteria in middle west region of São Paulo, Brazil. Brazilian Journal of Veterinary Research and Animal Science. 34, 4 (Aug. 1997), 207–210. DOI:https://doi.org/10.11606/issn.2318-3659.v34i4p207-210.