APA (7th ed.) Zitazioa
Howells, K. (2012). Gratitude in education: A radical view. Sense Publishers.
Chicago Style (17th ed.) Zitazioa
Howells, Kerry. Gratitude in Education: A Radical View. Rotterdam: Sense Publishers, 2012.
MLA (9th ed.) Zitazioa
Howells, Kerry. Gratitude in Education: A Radical View. Sense Publishers, 2012.
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