Input-output models and the agricultural sector / Midmore, Peter, Agricultural productivity Input-output analysis 338 AVE 1991 A019 Or. "Papers originally presented to the workshop on input-output and agriculture held in Wye College of the University of London in April 1990"--Pref. Aldershot, Hants, England ; Brookfield, Vt., USA : Avebury, 1991. 1991. Text vii, 140 p. :