TY  - BOOK
AU  - Riggs,James L.
AU  - West,Thomas M.
TI  - Essentials of engineering economics
SN  - 0070528721
U1  - TA/177.4 
PY  - 1986///
CY  - New York
PB  - McGraw-Hill
KW  - Engineering economy.
KW  - Managerial economics.
ER  -