00446cam a22001335i 450000500170000000800410001704000280005808200180008624501180010426000300022230000200025265000220027270000180029420181210004423.0171102s1984    txu           000 0 eng    aDLCbengerdacBD-DhBPA  a630bMAC 198410aComing full circle :bFarmers' participation in the development of technology /cedited by Peter Matlon...[et.el]  aCanada :bI.D.R.C,c1984.  a176 p. ;c24 cm  a     Agriculture.  aMatlon, Peter