000 00377nam a2200121Ia 4500
001 MPKV061679
008 120911s9999 xx 000 0 und d
082 _a631.3
245 _aTransactions of the ASAE Vol 20 No.1-6
_c;
246 _aTransactions of the ASAE Vol 20 No.1-6
260 _aMichigan
_bAmerican Society of Agril. Engineers
_c1977
650 _aAgricultural Engineering
999 _c59665
_d59665