000 00297nam a22001337a 4500
041 _aENG
100 _aHellckson.M.A
245 _aVentilation of Agricul Structures
260 _aMichigan
_bAn ASAE Monograph
_c1983
300 _a372
650 _aAPE
700 _aWaiker.J.N
856 _uAPE ( 03 )
999 _c2501
_d2501