TY  - BOOK
AU  - Lewis,John P., x
AU  - x
TI  - Business conditions analysis : x 
SN  - x
U1  - 330.18/LEB  
PY  - 1959///
CY  - N. Y. 
PB  - McGraw-hill
KW  - Economics, theory of
KW  - Economics
ER  -