APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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