TY  - BOOK
AU  - Heywood,Roland Byron
TI  - Photoelasticity for designers  / 
U1  - 620.1129 HEY 
PY  - 1969///
CY  - Oxford : 
PB  - Pergamon Press , 
KW  - Photoelasticity
KW  - Engineering design
N1  -  Includes bibliography : p. 370 - 422
ER  -