00442nam a2200133Ia 4500008004100000020001800041040001700059082002200076100001800098245006900116260004200185300001300227650006800240190328s9999||||xx |||||||||||||| ||und||  a0-19-859459-3  aNITILcNITIL  221sta338.1bU71A  aUpton, Martin 0aAgricultural production economics and resource-UsecMartin Upton  aLondonbOxford University Pressc1976  ax, 357p.  aAgricultural production; Natural resources; Capital land tenure