APA-viite (7. p.)
Witherspoon, A. (1973). Common errors in english and how to avoid them. Littlefield.
Chicago-viite (17. p.)
Witherspoon, Alexander. Common Errors in English and How to Avoid Them. New Jersey: Littlefield, 1973.
MLA-viite (9. p.)
Witherspoon, Alexander. Common Errors in English and How to Avoid Them. Littlefield, 1973.
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