APA (7th ed.) Citation

Krull, K., Brewer, P., & Innerst, S. (2010). Lincoln tells a joke: How laughter saved the president (and the country). Harcourt Children's Books/Houghton Mifflin Harcourt.

Chicago Style (17th ed.) Citation

Krull, Kathleen, Paul Brewer, and Stacy Innerst. Lincoln Tells a Joke: How Laughter Saved the President (and the Country). Boston [Mass.]: Harcourt Children's Books/Houghton Mifflin Harcourt, 2010.

MLA (9th ed.) Citation

Krull, Kathleen, et al. Lincoln Tells a Joke: How Laughter Saved the President (and the Country). Harcourt Children's Books/Houghton Mifflin Harcourt, 2010.