APA (7th ed.) Citation

Peach, W. N. (1960). Principles of economics. Richard D. Irwin.

Chicago Style (17th ed.) Citation

Peach, William Nelson. Principles of Economics. Homewood, IL: Richard D. Irwin, 1960.

MLA (9th ed.) Citation

Peach, William Nelson. Principles of Economics. Richard D. Irwin, 1960.