APA (7th ed.) Zitazioa
Stoop, D. A. (1971). Ways to help them learn: Youth.grades 7 to 12. Int.Center for learning.
Chicago Style (17th ed.) Zitazioa
Stoop, David A. Ways to Help Them Learn: Youth.grades 7 to 12. California: Int.Center for learning, 1971.
MLA (9th ed.) Zitazioa
Stoop, David A. Ways to Help Them Learn: Youth.grades 7 to 12. Int.Center for learning, 1971.
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