Walsh, S. R., & Dolin, R. (2011). Vaccinia viruses: Vaccines against smallpox and vectors against infectious diseases and tumors.
Dyfyniad Arddull ChicagoWalsh, Stephen R., and Raphael Dolin. Vaccinia Viruses: Vaccines against Smallpox and Vectors against Infectious Diseases and Tumors. 2011.
Dyfyniad MLAWalsh, Stephen R., and Raphael Dolin. Vaccinia Viruses: Vaccines against Smallpox and Vectors against Infectious Diseases and Tumors. 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.