00370naa a2200121 a 450000100080000000500110000800800410001910000160006024500670007626000090014370000170015277300790016918261102010-01-10       1974    bl ---       0--  u    #d1 aCHEN, J. T.  aMarginal risk constraint linear program for activity analysis.  c19741 aBAKER, C. B.  tAmerican Journal of Agricultural Economicsgv. 56, n. 3, p. 622-627, 1974.