“Considerations about the Contents of Gama Globulina in the Plasma of the Hereford Cattle Breed”. Revista Da Faculdade De Medicina Veterinária, Universidade De São Paulo, vol. 7, no. 2, Dec. 1965, pp. 475-9, https://doi.org/10.11606/issn.2318-5066.v7i2p475-479.