Blanckenburg, Peter von.
Agricultural extension systems in some African and Asian countries : an analysis of country reports / by Peter von Blanckenburg. - Rome : FAO of the United Nations, 1984. - iii, 75 p. - FAO economic and social development paper ; 46 .
Agricultural extension work--Africa.
Agricultural extension work--Asia.
Agricultural extension systems in some African and Asian countries : an analysis of country reports / by Peter von Blanckenburg. - Rome : FAO of the United Nations, 1984. - iii, 75 p. - FAO economic and social development paper ; 46 .
Agricultural extension work--Africa.
Agricultural extension work--Asia.