TY  - BOOK
AU  - Burns Arthur F
TI  - Business cycle in a chaging world
T2  - National Bureu of Economic Research, Studies in Business Cycles.18
U1  - X:74z7, K9 
PY  - 1969///
CY  - New York
PB  - National Bureau of economic Research USA    
KW  - Business Cycle
ER  -