000 00261 a2200121 4500
080 _a664.9(063)
_bP 963
245 1 _aProceedings
260 _aIndiana
_bPurdue University
_c1970
650 _aHog Subsector
100 _a
_d
300 _a173 p.
901 _a119454
999 _c89503
_d89503