Cita APA (7a ed.)

Pelfrey, W. (2006). Billy, Alfred, and General Motors: The story of two unique men, a legendary company, and a remarkable time in American history (1st edition.). AMACOM.

Cita Chicago Style (17a ed.)

Pelfrey, William. Billy, Alfred, and General Motors: The Story of Two Unique Men, a Legendary Company, and a Remarkable Time in American History. 1st edition. New York, New York: AMACOM, 2006.

Cita MLA (9a ed.)

Pelfrey, William. Billy, Alfred, and General Motors: The Story of Two Unique Men, a Legendary Company, and a Remarkable Time in American History. 1st edition. AMACOM, 2006.