Singh, K. V., Saad, N., & Zein, A. E. (1971). Preliminary Observations on the Pathogenesis of a Virulent Strain of Newcastle Disease Virus in Chickens.
Citação norma ChicagoSingh, K. V., Najla Saad, and A. El Zein. Preliminary Observations On the Pathogenesis of a Virulent Strain of Newcastle Disease Virus in Chickens. 1971.
Citação norma MLASingh, K. V., Najla Saad, and A. El Zein. Preliminary Observations On the Pathogenesis of a Virulent Strain of Newcastle Disease Virus in Chickens. 1971.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.