APA (7th ed.) Citation

Oppenheim, F. E. (1961). Dimensions of freedom: An analysis. St. Martin's Press.

Chicago Style (17th ed.) Citation

Oppenheim, Felix E. Dimensions of Freedom: An Analysis. New York: St. Martin's Press, 1961.

MLA (9th ed.) Citation

Oppenheim, Felix E. Dimensions of Freedom: An Analysis. St. Martin's Press, 1961.