Cita APA (7th ed.)

Wiggins, G. P., & McTighe, J. (2005). Understanding by design (Expanded 2nd ed.). Association for Supervision and Curriculum Development.

Cita Chicago (17th ed.)

Wiggins, Grant P., i Jay McTighe. Understanding by Design. Expanded 2nd ed. Alexandria, VA: Association for Supervision and Curriculum Development, 2005.

Cita MLA (9th ed.)

Wiggins, Grant P., i Jay McTighe. Understanding by Design. Expanded 2nd ed. Association for Supervision and Curriculum Development, 2005.