Cita APA (7th ed.)

Patterson, S. H., & Scholz, K. W. H. (1931). Economic problems of modern life (4th ed.). McGraw-Hill Book Company.

Cita Chicago (17th ed.)

Patterson, Samuel Howard, i Karl William Henry Scholz. Economic Problems of Modern Life. 4th ed. New York: McGraw-Hill Book Company, 1931.

Cita MLA (9th ed.)

Patterson, Samuel Howard, i Karl William Henry Scholz. Economic Problems of Modern Life. 4th ed. McGraw-Hill Book Company, 1931.