000 00341nam a2200133Ia 4500
008 130223s9999 xx 000 0 und d
100 _aJohnson, M.W.
245 _a1971 Pennsylvania corn performance studies
260 _aPennsylvania
260 _c1972
440 _aNo. 322; Pennsylvania College
901 _pS21306
942 _cB
_2udc
999 _c151616
_d151616