000 00308pam a2200109a 44500
008 140414b1979 xxu||||| |||| 00| 0 eng d
245 _aRoad Gravels Gravas Les Graviers
_c
260 _aWashington D C
_bNational Academy of Sciences
_c1979
650 _aROAD GRAVELS
690 _aCIVIL ENGINEERING
906 _a7949
999 _c7629
_d7629