APA (7th ed.) Citation

Guelzo, A. C. (2005). Mr. Lincoln: The life of Abraham Lincoln. Teaching Co..

Chicago Style (17th ed.) Citation

Guelzo, Allen C. Mr. Lincoln: The Life of Abraham Lincoln. Chantilly, VA: Teaching Co., 2005.

MLA (9th ed.) Citation

Guelzo, Allen C. Mr. Lincoln: The Life of Abraham Lincoln. Teaching Co., 2005.