APA (7th ed.) Citation

Soule, G. H. (1964). The new science of economics: An introduction. Viking Press.

Chicago Style (17th ed.) Citation

Soule, George Henry. The New Science of Economics: An Introduction. New York: Viking Press, 1964.

MLA (9th ed.) Citation

Soule, George Henry. The New Science of Economics: An Introduction. Viking Press, 1964.