000 00233nam a22001097a 4500
082 _a620.196
_bASP
_cD
245 _aAsphalt as a material
260 _aMaryland :
_cJuly 1975.
300 _a16 p. :
_bill. :
650 _aMCE
942 _cBK
999 _c5424
_d5424