APA (7th ed.) Citation

Guthrie, J. A. (1957). Economics. R. D. Irwin.

Chicago Style (17th ed.) Citation

Guthrie, John Alexander. Economics. Homewood, Illinois: R. D. Irwin, 1957.

MLA (9th ed.) Citation

Guthrie, John Alexander. Economics. R. D. Irwin, 1957.