APA-viite (7. p.)
Paul, R., & Elder, L. (2007). How to write a paragraph: The art of substantive writing. Foundation for Critical Thinking Press.
Chicago-viite (17. p.)
Paul, Richard, ja Linda Elder. How to Write a Paragraph: The Art of Substantive Writing. Tomales, Calif.: Foundation for Critical Thinking Press, 2007.
MLA-viite (9. p.)
Paul, Richard, ja Linda Elder. How to Write a Paragraph: The Art of Substantive Writing. Foundation for Critical Thinking Press, 2007.
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