Cita APA (7a ed.)

Keirstead, B. S. (1942). Essentials of Price Theory. University of Toronto Press.

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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