Dyfyniad APA

Guan, Y., Shortridge, K. F., Krauss, S., Li, P. H., Kawaoka, Y., & Webster, R. G. (1996). Emergence of avian H1N1 influenza viruses in pigs in China. J Virol.

Dyfyniad Arddull Chicago

Guan, Y., K F. Shortridge, S. Krauss, P H. Li, Y. Kawaoka, and R G. Webster. "Emergence of Avian H1N1 Influenza Viruses in Pigs in China." J Virol 1996.

Dyfyniad MLA

Guan, Y., et al. "Emergence of Avian H1N1 Influenza Viruses in Pigs in China." J Virol 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.