APA (7th ed.) Citation

Graubard. (2006). The Presidents: The transformation of the American Presidency from Theodore Roosevelt to George W. Bush. Penguin Books.

Chicago Style (17th ed.) Citation

Graubard. The Presidents: The Transformation of the American Presidency from Theodore Roosevelt to George W. Bush. London: Penguin Books, 2006.

MLA (8th ed.) Citation

Graubard. The Presidents: The Transformation of the American Presidency from Theodore Roosevelt to George W. Bush. Penguin Books, 2006.

Warning: These citations may not always be 100% accurate.