Ram, K. (1968). Agricultural demonstration and extension communication. Ashish Publishing House.
Chicago Edition CitationRam, Krishnan. Agricultural Demonstration and Extension Communication. New Delhi: Ashish Publishing House, 1968.
Cita MLARam, Krishnan. Agricultural Demonstration and Extension Communication. Ashish Publishing House, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.