APA (7th ed.) Citation

Eastwood, R. P. (1940). Sales control by quantitative methods. Columbia university press.

Chicago Style (17th ed.) Citation

Eastwood, Robert Parker. Sales Control by Quantitative Methods. New York: Columbia university press, 1940.

MLA (9th ed.) Citation

Eastwood, Robert Parker. Sales Control by Quantitative Methods. Columbia university press, 1940.