Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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