TY  - BOOK
AU  -  Clark,Colin
TI  -  The conditions of economic progress / 
U1  -  330.904 
PY  - 1957///
CY  -  London : 
PB  -  St. Martin's Press, 
KW  -  Economic history
KW  -  Income
KW  -  Cost and standard of living
N1  -  Includes bibliographical references
ER  -