APA-viite

Gangwar, B., & Yadav, R. L. (2001). System based low production technologies for small farmers. Project Directorate for Cropping System Research.

Chicago-tyylinen lähdeviittaus

Gangwar, B., ja R L. Yadav. System Based Low Production Technologies for Small Farmers. Modipuram: Project Directorate for Cropping System Research, 2001.

MLA-viite

Gangwar, B., ja R L. Yadav. System Based Low Production Technologies for Small Farmers. Project Directorate for Cropping System Research, 2001.