Cita APA (7th ed.)

Colberg, M. R., Alt, R. M., Forbush, D. R., & Whitaker, G. R. (1970). Business economics: Principles and cases (4th ed.). Irwin.

Cita Chicago (17th ed.)

Colberg, Marshall R., Richard M. Alt, Dascomb R. Forbush, i Gilbert R. Whitaker. Business Economics: Principles and Cases. 4th ed. Homewood, Ill.: Irwin, 1970.

Cita MLA (8th ed.)

Colberg, Marshall R., et al. Business Economics: Principles and Cases. 4th ed. Irwin, 1970.