TY  - BOOK
AU  - Langer, William H.
AU  - Knepper, Daniel H.
CN  - I 19.76:
CY  - [Reston, Va.] :
DA  - 1995.
ID  - 195734
KW  - Aggregates (Building materials)
N1  - Distributed to depository libraries in microfiche.
N1  - Shipping list no.: 97-0317-M.
PB  - U.S. Dept. of the Interior, U.S. Geological Survey,
PP  - [Reston, Va.] :
PY  - 1995.
T1  - Geologic characterization of natural aggregatea field geologist's guide to natural aggregate resource assessment /
TI  - Geologic characterization of natural aggregatea field geologist's guide to natural aggregate resource assessment /
VL  - 95-582
ER  -