TY  - BOOK
ED  - United Nations Industrial Development Organization. 
TI  - Guidelines for project evaluation / 
T2  - United Nations Industrial Development Organization. Project Formulation and Evolution Series, 2. 
U1  - 658.1552 23
PY  - 1972///.
CY  - New York : 
PB  - United Nations, 
KW  - commercial profitability and its limitations.
ER  -