APA (7th ed.) Citation

Scott, R. H., & Nigro, N. (1982). Principles of economics. Macmillan.

Chicago Style (17th ed.) Citation

Scott, Robert Haney, and Nic Nigro. Principles of Economics. New York, N.Y: Macmillan, 1982.

MLA (9th ed.) Citation

Scott, Robert Haney, and Nic Nigro. Principles of Economics. Macmillan, 1982.