Cita APA (7a ed.)

Kuhlman, J. M., & Skinner, G. S. (1959). The economic system ([1st printing].). Richard D. Irwin, Inc.

Cita Chicago Style (17a ed.)

Kuhlman, John M., y Gordon S. Skinner. The Economic System. [1st printing]. Homewood [etc.]: Richard D. Irwin, Inc, 1959.

Cita MLA (9a ed.)

Kuhlman, John M., y Gordon S. Skinner. The Economic System. [1st printing]. Richard D. Irwin, Inc, 1959.