Dyfyniad APA

Sagar, G. (1977). Origin of pest, parasite,diseases and weed problems. Blackwell Scientific Publication.

Dyfyniad Arddull Chicago

Sagar, G.R. Origin of Pest, Parasite,diseases and Weed Problems. Oxford: Blackwell Scientific Publication, 1977.

Dyfyniad MLA

Sagar, G.R. Origin of Pest, Parasite,diseases and Weed Problems. Blackwell Scientific Publication, 1977.

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