■i 
/IROGENETICS 
LITERATURE CITED 
Cox, W.I., J. Tartaglia, and E. Paoletti. 1991. Recombinant Poxviruses , (eds. M. Binns 
and G. L. Smith) CRC Press, Boca Raton, Florida, pp 123-162. 
Esposito, J.J. 1991. Fifth report of the international committee on taxonomy of viruses. 
Arch, of Virology Suppl. 2, (eds. R.I.B. Francki, C.M. Faquet, D.L. Knudson, F. 
Brown) Springer- Verlag, NY, pp 91-102. 
Tripathy, D.N. 1991. Diseases of Poultry, 9th ed., (eds. B.W. Calnek, H.J. Barnes, C.W. \ 
Beard, W.M. Reid, H.W. Yoder, Jr.) Iowa State University Press, Ames, LA, pp 
583-596. 
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