APA (7th ed.) Citation

Umbreit, M. H., Hunt, E. F., & Kinter, C. V. (1957). Economics: An introduction to principles and problems (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Umbreit, Myron H., Elgin F. Hunt, and Charles V. Kinter. Economics: An Introduction to Principles and Problems. 3rd ed. New York [u.a.]: McGraw-Hill, 1957.

MLA (9th ed.) Citation

Umbreit, Myron H., et al. Economics: An Introduction to Principles and Problems. 3rd ed. McGraw-Hill, 1957.