TY  - BOOK
AU  - Knight,Bernard Howard[from old catalog]
AU  - Knight,Rena Gertrude,[from old catalog]
TI  - Road aggregates: their uses and testing 
U1  - 625.732 
PY  - 1948///
CY  - London
PB  - E. Arnold & Co.
KW  - Road materials
KW  - Petrology
KW  - MCE
N1  - "List of references" : p. 248-251
ER  -