TY  - BOOK
AU  - Wagemann,Ernst
AU  - Blelloch,David Habershon
TI  - Economic rhythm: a theory of business cycles 
U1  - 330.1 22
PY  - 1930///
CY  - New York
PB  - McGraw-Hill Book Company, inc.
KW  - Business cycles
KW  - Supply and demand
KW  - Prices
N1  - Includes bibliographies
ER  -