Ray, G. L.
Extension communication and management / Textual Documents by G. L. Ray - Ludhiana : Kalyani Publishers, 1991. - 382 p.,
(PB)
Agricultural Extension Communication
630.715 / RAY
Extension communication and management / Textual Documents by G. L. Ray - Ludhiana : Kalyani Publishers, 1991. - 382 p.,
(PB)
Agricultural Extension Communication
630.715 / RAY