APA (7th ed.) Citation

Peterson, W. L. (1977). Principle of economics macro third edition. Illinois Richard D. Irwin.

Chicago Style (17th ed.) Citation

Peterson, Willis L. Principle of Economics Macro Third Edition. Illinois Richard D. Irwin, 1977.

MLA (8th ed.) Citation

Peterson, Willis L. Principle of Economics Macro Third Edition. Illinois Richard D. Irwin, 1977.

Warning: These citations may not always be 100% accurate.