Gupta, U. S. (1995). Crop physiology advancing frontiers: Principles, processes and applications. Oxford & IBH Publishing.
Cita Chicago (17th ed.)Gupta, U. S. Crop Physiology Advancing Frontiers: Principles, Processes and Applications. New Delhi: Oxford & IBH Publishing, 1995.
Cita MLA (9th ed.)Gupta, U. S. Crop Physiology Advancing Frontiers: Principles, Processes and Applications. Oxford & IBH Publishing, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.