APA (7th ed.) Citation

Keirstead, B. S. (1942). Essentials of price theory. The University of Toronto press.

Chicago Style (17th ed.) Citation

Keirstead, B. S. Essentials of Price Theory. Toronto, Canada: The University of Toronto press, 1942.

MLA (9th ed.) Citation

Keirstead, B. S. Essentials of Price Theory. The University of Toronto press, 1942.

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