APA (7th ed.) Citation

Bowden, R. D. (1937). Boies Penrose: Symbol of an era. Greenberg.

Chicago Style (17th ed.) Citation

Bowden, Robert Douglas. Boies Penrose: Symbol of an Era. New York: Greenberg, 1937.

MLA (9th ed.) Citation

Bowden, Robert Douglas. Boies Penrose: Symbol of an Era. Greenberg, 1937.