APA (7th ed.) Citation

Peterson, W. L. (1989). Principles of economics: Micro (7th edition.). Universal Book Stall.

Chicago Style (17th ed.) Citation

Peterson, Willis L. Principles of Economics: Micro. 7th edition. New Delhi: Universal Book Stall, 1989.

MLA (8th ed.) Citation

Peterson, Willis L. Principles of Economics: Micro. 7th edition. Universal Book Stall, 1989.