TY  - BOOK
AU  - United Nations, Economic and social affairs (Deptt of-)
ED  - United Nations, Economic and social affairs (Deptt of-)
TI  - Threshold analysis handbook
U1  - NB:(X:89K)g, L7/UN 
PY  - 1977///
CY  - New York
PB  - United Nations USA       
KW  - Fine Arts
ER  -