(1)
Denadai, J.; Paulillo, A. C.; Schmidt , E. M. dos S.; Martins, G. R. V.; Lapera, I. M.; Carrasco, A. de O. T. Clinical and Immunological Aspects of Newcastle Disease Vaccination in Budgerigars (Melopsittacus Undulatus). Int. J. Poult. Sci. 2010, 9 (8), 765–766. https://doi.org/10.3923/ijps.2010.765.766.