Παραπομπή APA

SANKARA REDDY, G. H., & YELLAMANDA REDDY, T. (2011). PRINCIPLES OF AGRONOMY (4.).

Παραπομπή Chicago Style

SANKARA REDDY, G H., και T. YELLAMANDA REDDY. PRINCIPLES OF AGRONOMY. 4. LUDHIANA, KALYANI, 2011.

Παραπομπή MLA

SANKARA REDDY, G H., και T. YELLAMANDA REDDY. PRINCIPLES OF AGRONOMY. 4. 2011.