Style de citation APA (7e éd.)
Witherspoon, A. (1973). Common errors in english and how to avoid them. Littlefield.
Style de citation Chicago (17e éd.)
Witherspoon, Alexander. Common Errors in English and How to Avoid Them. New Jersey: Littlefield, 1973.
Style de citation MLA (9e éd.)
Witherspoon, Alexander. Common Errors in English and How to Avoid Them. Littlefield, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.