Gaya APA
Soule, George. (1966).
The new science of economics an introduction .
New York:
Fawcett Publishing.
Gaya Chicago
Soule, George.
The new science of economics an introduction.
New York:
Fawcett Publishing,
1966.
.
Gaya MLA
Soule, George.
The new science of economics an introduction.
New York:
Fawcett Publishing,
1966.
.
Gaya Turabian
Soule, George.
The new science of economics an introduction.
New York:
Fawcett Publishing,
1966.
.