TY  - BOOK
AU  - How things work:
AU  - 
TI  - How things work
U1  - 62(038) 
PY  - 1974///
CY  - Herts
PB  - Paladin
KW  - Engineering
KW  - Electronics
KW  - Civil engineering
KW  - Aeronautics
KW  - human engineering
KW  - Hydraulic engineering
KW  - Structural engineering
KW  - Engineering encyclopaedia
KW  - Technical encyclopaedia
N1  -  Tr. from German
ER  -