1. Knowledge and opinion of extension personnel towards the effectiveness of farm advisory service of P.A.U., Ludhiana in developmental programmes of agriculture Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Gupta, R.K. (author), Sohal, T. S. (author), and Malhi, J.S. (author) Format: Journal article Publication Date: 1973 Published: India Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 128 Document Number: C18949 Journal Title: Indian Journal of Extension Education Journal Title Details: 9(3/4) : 124-130