TY  - BOOK
AU  - Knight, Bernard H.
AU  - Knight, Rena G.
TI  - Road aggregates: their uses and testing
U1  - 625.7 
PY  - 1948///
CY  - London
PB  - Edward Arnold
KW  - Road materials
KW  - Petrology
N1  - List Of References : P. 248-251
ER  -