00511nam a2200169Ia 4500082002300000100002200023245007500045260003400120300002200154500000500176690000600181700000500187952010500192964001700297921001000314999001700324  a658.80963bP985.AM  aPurcell, Wayne D.  aAgricultural marketingbsystems, coordination, cash and futures prices  aVirginiabPrentice-Hallc1979  aviii, 472p. Index  a  a   a  00104070aISIbISId1998-10-07l0o658.80963 P985.AMpDP17948r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a15806  c15806d15806