APA (7th ed.) Citation

Sikes, E. R. (1940). Contemporary economic systems--: Their analysis and historical background. H. Holt and company.

Chicago Style (17th ed.) Citation

Sikes, Earl Ray. Contemporary Economic Systems--: Their Analysis and Historical Background. New York: H. Holt and company, 1940.

MLA (9th ed.) Citation

Sikes, Earl Ray. Contemporary Economic Systems--: Their Analysis and Historical Background. H. Holt and company, 1940.