APA (7th ed.) Zitazioa

Wiggins, G. P., & McTighe, J. (2011). The understanding by design guide to creating high-quality units. ASCD.

Chicago Style (17th ed.) Zitazioa

Wiggins, Grant P., eta Jay McTighe. The Understanding by Design Guide to Creating High-quality Units. Alexandria, Va.: ASCD, 2011.

MLA (9th ed.) Zitazioa

Wiggins, Grant P., eta Jay McTighe. The Understanding by Design Guide to Creating High-quality Units. ASCD, 2011.