Agricultural extension
Van den Ban, A.W. ; Hawkins, H. S.
Agricultural extension - New Delhi CBS Publishers and Distributors 2002 - 2e. viii, 294p.
81239-0576-9
Agricultural extension workAgriculture -- Vulgarisation
Agricultural extension - New Delhi CBS Publishers and Distributors 2002 - 2e. viii, 294p.
81239-0576-9
Agricultural extension workAgriculture -- Vulgarisation