APA (7th ed.) Citation

Smart, W. K. (1916). How to write business letters. A.W. Shaw Co..

Chicago Style (17th ed.) Citation

Smart, Walter Kay. How to Write Business Letters. New York : Chicago [etc.]: A.W. Shaw Co., 1916.

MLA (8th ed.) Citation

Smart, Walter Kay. How to Write Business Letters. A.W. Shaw Co., 1916.