TY  - BOOK
AU  - Harris, C.Harman 
AU  - Lister , J.E. 
TI  - Mechanical draught
U1  - 621.1 21st ed
PY  - 1926///
CY  - London
PB  - Ernest Benn
KW  - Draught
N1  - Index: pp 136-38
ER  -