00299nam a2200121Ia 4500082001700000100001900017245006300036260000900099300001600108490001800124490003000142500000500172  a338.9 M791b  aMontias, J. M.  aPlanning with material balances in Soviet type economicsb  c1959  app. 963-985  vDecember 1959  aAmerican Economic Review   a