Gaya APA

Ifenthaler, D. et al (2008). Understanding models for learning and instruction: essays in honor of Norbert M. Seel . New York: Springer.

Gaya MLA

Ifenthaler, Dirk. et al. "Understanding models for learning and instruction: essays in honor of Norbert M. Seel". New York: Springer, 2008. Text.