TY - HOUR CN - I 28.118/4: CN - HD9585.S15 CY - Washington, DC : DA - 1989- ID - 139932 KW - Aggregates (Building materials) KW - Crushed stone industry KW - Sand and gravel industry LK - http://purl.access.gpo.gov/GPO/LPS2024 N1 - Title from caption. N1 - Imprint varies: Washington, D.C., 19 -<2nd quarter 1995>; Reston, Va., <4th quarter 1995-> N1 - Distributed to depository libraries in microfiche, <1989-2nd quarter 1995> N1 - Not distributed to depository libraries in a physical form, <1996-> PB - U.S. Dept. of the Interior, Bureau of Mines, PP - Washington, DC : PY - 1989- T1 - Crushed stone and sand and gravel in the ... / TI - Crushed stone and sand and gravel in the ... / UR - http://purl.access.gpo.gov/GPO/LPS2024 ER -