TY  - BOOK
ED  - American Society for Testing Materials. [from old catalog]
TI  - Symposium on mineral aggregates, 1948: Fifty-first annual meeting, American Society for Testing Materials,
U1  - 620.191 
PY  - 1948///]
CY  - Philadelphia
KW  - Aggregates (Building materials)
KW  - MCE
ER  -