APA (7th ed.) Citation

Grossman, P. Z. (1987). American Express: The unofficial history of the people who built the great financial empire. Crown Publishers.

Chicago Style (17th ed.) Citation

Grossman, Peter Z. American Express: The Unofficial History of the People Who Built the Great Financial Empire. New York: Crown Publishers, 1987.

MLA (9th ed.) Citation

Grossman, Peter Z. American Express: The Unofficial History of the People Who Built the Great Financial Empire. Crown Publishers, 1987.