Dyfyniad APA

Whitney,E D et al. (1991). Compendium of beet deseases and insects. APS Press.

Dyfyniad Arddull Chicago

Whitney,E D et al. Compendium of Beet Deseases and Insects. USA: APS Press, 1991.

Dyfyniad MLA

Whitney,E D et al. Compendium of Beet Deseases and Insects. APS Press, 1991.

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