000 00260nam a2200085Ia 4500
008 130123s9999 xx 000 0 und d
082 _a631.3
245 _aTransactions of the ASAE Vol 42 Part No.1-3
260 _aMichigan
_bAmerican Society of Agril. Engineers
_c1999
999 _c77539
_d77539