APA (7th ed.) Citation

Blakey, R. G., & Blakey, G. M. C. (1940). The federal income tax. Longmans, Green and Co..

Chicago Style (17th ed.) Citation

Blakey, Roy G., and Gladys McAlpine Campbell Blakey. The Federal Income Tax. London, New York [etc.]: Longmans, Green and Co., 1940.

MLA (8th ed.) Citation

Blakey, Roy G., and Gladys McAlpine Campbell Blakey. The Federal Income Tax. Longmans, Green and Co., 1940.