TY  - BOOK
AU  - Roark,Raymond J.
TI  - Formulas for stress and strain / 
U1  - 620.112 ROA 
PY  - 1965///
CY  - New York : 
PB  - McGraw-Hill , 
KW  - Strains and Stresses
KW  - Testing
KW  - Materials
N1  -  Includes mbibliographical references
ER  -