Citazione Stile APA (7a Edizione)

Paul, R., & Elder, L. (2007). How to write a paragraph: The art of substantive writing. Foundation for Critical Thinking Press.

Citazione stile Chigago Style (17a edizione)

Paul, Richard, e Linda Elder. How to Write a Paragraph: The Art of Substantive Writing. Tomales, Calif.: Foundation for Critical Thinking Press, 2007.

Citatione MLA (9a ed.)

Paul, Richard, e Linda Elder. How to Write a Paragraph: The Art of Substantive Writing. Foundation for Critical Thinking Press, 2007.