APA (7th ed.) Citation

Ambrose, S. E. (1996). Undaunted courage: Meriwether Lewis, Thomas Jefferson, and the opening of the American West. Simon & Schuster.

Chicago Style (17th ed.) Citation

Ambrose, Stephen E. Undaunted Courage: Meriwether Lewis, Thomas Jefferson, and the Opening of the American West. New York: Simon & Schuster, 1996.

MLA (9th ed.) Citation

Ambrose, Stephen E. Undaunted Courage: Meriwether Lewis, Thomas Jefferson, and the Opening of the American West. Simon & Schuster, 1996.