Extension science
Roling, Niels
Extension science information system in agricultural development - Cambridge Cambridge University Press 1988 - xii,233p. 23cm - Cambridge studies in agricultural development .
0521348870
Agriculture
630.7 / ROL
Extension science information system in agricultural development - Cambridge Cambridge University Press 1988 - xii,233p. 23cm - Cambridge studies in agricultural development .
0521348870
Agriculture
630.7 / ROL