APA-Zitierstil (7. Ausg.)

Chall, J. S., & Conard, S. S. (1991). Should textbooks challenge students?: The case for easier or harder textbooks. Teachers College Press.

Chicago-Zitierstil (17. Ausg.)

Chall, Jeanne Sternlicht, und Sue S. Conard. Should Textbooks Challenge Students?: The Case for Easier or Harder Textbooks. New York u.a: Teachers College Press, 1991.

MLA-Zitierstil (9. Ausg.)

Chall, Jeanne Sternlicht, und Sue S. Conard. Should Textbooks Challenge Students?: The Case for Easier or Harder Textbooks. Teachers College Press, 1991.