TY  - BOOK
AU  - Knight,Bernard Howard
AU  - Knight,Rena Gertrude
TI  - Builders' materials,
U1  - 691 
PY  - 1948///]
CY  - London
PB  - E. Arnold
KW  - Building materials
KW  - MCE
N1  - "References": p. 292
ER  -