TY  - BOOK
AU  - Willems, N.
AU  - Easley, John T.
AU  - Rolfe, Stanley T.
TI  - Strength of materials
SN  - 0070702977
U1  - 620.112 
PY  - 1981///
CY  - New York
PB  - McGraw-Hill Book Company
ER  -