TY  - BOOK
AU  - Truitt,Gray
AU  - Whitman,Arthur Dudley
TI  - Visualized principles and problems of economics
AV  - HB171.5 .T7
U1  - 330.1 
PY  - 1936///]
CY  - New York
PB  - Oxford book company
KW  - Economics
KW  - Local
N1  - "Classified bibliography": p. 335-337
ER  -