Dyfyniad APA

Barker, W. H., Sagerser, J. C., Hall, C. V., Anderson, H. W., & Francis, B. J. (1974). Foodborne disease surveillance: Washington State.

Dyfyniad Arddull Chicago

Barker, W H., J C. Sagerser, C V. Hall, H W. Anderson, and B J. Francis. Foodborne Disease Surveillance: Washington State. 1974.

Dyfyniad MLA

Barker, W H., et al. Foodborne Disease Surveillance: Washington State. 1974.

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