APA (7th ed.) Citation

Katona, G., & Strumpel, B. (1978). A new economic era. Elsevier.

Chicago Style (17th ed.) Citation

Katona, George, and Burkhard Strumpel. A New Economic Era. New York: Elsevier, 1978.

MLA (9th ed.) Citation

Katona, George, and Burkhard Strumpel. A New Economic Era. Elsevier, 1978.