Style de citation APA (7e éd.)
Little, P., & Foreward by Graham Billy. (1988). The answer to life. Crossway Books.
Style de citation Chicago (17e éd.)
Little, Paul, et Foreward by Graham Billy. The Answer to Life. Illinois: Crossway Books, 1988.
Style de citation MLA (9e éd.)
Little, Paul, et Foreward by Graham Billy. The Answer to Life. Crossway Books, 1988.
Attention : ces citations peuvent ne pas être correctes à 100%.