TY  - BOOK
AU  - Twelvetrees, W Noble
TI  - Concrete Making Machinery: Includes Appliances and plant for Testing and Preparing the Constituent Materials and for the Distribution of Mixed Concrete
U1  - 693.52 
PY  - 1925///
CY  - London
PB  - Scott,GreenWood & Sons
KW  - Building
ER  -