00505    a2200169   4500082001600000100002300016245008900039260005300128300001500181650003100196650000900227650001200236700001800248700002300266700002500289700002100314  a633.18bIMP  aPerry, Gregory M.   aThe impact of tenure arrangements and crop rotations on upper gulf coast rice farms   aTexasbThe Texas agricultural Experiment Station  a87p.c29cm  aField and plantation crops  aRice  aCereals  aSij, John W.   aRister, M. Edward   aRichardson, James W.  aGrant, Warren R.