TY  - BOOK
AU  - American Telephone and Telegraph Company, Construction Plants (Deptt).
ED  - American Telephone and Telegraph Company, Construction Plants (Deptt).
TI  - Engineering economy :  A managers guide to economic   
U1  - X36:8:(S:44), L7 
PY  - 1977///
CY  - New York
PB  - McGraw-Hill USA        
KW  - Communication
ER  -