APA-viite

(2008). Direct seeding of rice and weed management in the irrigated rice-wheat cropping system of the indo-gangetic plains. Philippines: IRRI.

Chicago-tyylinen lähdeviittaus

Direct Seeding of Rice and Weed Management in the Irrigated Rice-wheat Cropping System of the Indo-gangetic Plains. Philippines: IRRI, 2008.

MLA-viite

Direct Seeding of Rice and Weed Management in the Irrigated Rice-wheat Cropping System of the Indo-gangetic Plains. Philippines: IRRI, 2008.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.