Cita APA (7th ed.)

Wiggins, G. P., & McTighe, J. (2006). Understanding by design (Expanded 2nd ed.). Pearson/Merrill Prentice Hall.

Cita Chicago (17th ed.)

Wiggins, Grant P., i Jay McTighe. Understanding by Design. Expanded 2nd ed. Upper Saddle River, N.J: Pearson/Merrill Prentice Hall, 2006.

Cita MLA (9th ed.)

Wiggins, Grant P., i Jay McTighe. Understanding by Design. Expanded 2nd ed. Pearson/Merrill Prentice Hall, 2006.