A. K. SRIVASTAVA AND P. K. TYAGI. (2011). PRACTICAL AGRICULTURAL METEOROLOGY. New Delhi Publishing Agency, NEW DELHI.
Cita Chicago (17th ed.)A. K. SRIVASTAVA AND P. K. TYAGI. PRACTICAL AGRICULTURAL METEOROLOGY. New Delhi Publishing Agency, NEW DELHI, 2011.
Cita MLA (9th ed.)A. K. SRIVASTAVA AND P. K. TYAGI. PRACTICAL AGRICULTURAL METEOROLOGY. New Delhi Publishing Agency, NEW DELHI, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.