TY  - BOOK
AU  - HMSO
TI  - Textbook of mechanical engineering: HMSO
U1  - 620 
PY  - 1934///
CY  - London
PB  - Majesty's Stationery Office
KW  - D
N1  - 0; 0; 0; 620_000000000000000_TEX
ER  -