TY  - GEN
AU  - Polak, Peter
TI  - Designing for strength: principles and pratical aspects of stress analysis for engineers and students 
SN  - 0333326768
U1  - 620.112 
PY  - 1982///
CY  - London
PB  - The Macmillan Press
KW  - Strength of materials
N1  - Includes references & index
ER  -