00311nam a2200109Ia 4500008004100000020001500041082002600056100002200082245003600104260003900140300002200179260423b        |||||||| |||| 00| 0 eng d  a0699028290  a338.17310973bG226.OS  aGardner, Bruce L.  aOptimal stockpiling of grainb/  aLexington:bLexington Books,c1979  axiii, 175p. Index