APA (7th ed.) Citation

Taft, W. H. P. U. S., & Butler, N. M. (1967). The president and his powers. Columbia University Press.

Chicago Style (17th ed.) Citation

Taft, William Howard Pres. U. S., and Nicholas Murray Butler. The President and His Powers. New York: Columbia University Press, 1967.

MLA (9th ed.) Citation

Taft, William Howard Pres. U. S., and Nicholas Murray Butler. The President and His Powers. Columbia University Press, 1967.