Dyfyniad APA

David Halvarson, Donna Hill, Pedro Villagas et al, & Simon Shane M. (2006). Biosecurity in the poultry industry. International boob distributing Co.

Dyfyniad Arddull Chicago

David Halvarson, Donna Hill, Pedro Villagas et al, and Simon Shane M. Biosecurity in the Poultry Industry. International boob distributing Co, 2006.

Dyfyniad MLA

David Halvarson, et al. Biosecurity in the Poultry Industry. International boob distributing Co, 2006.

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