APA ציטוט

Ehlers, U. (2006). Handbook on quality and standardisation in e-learning. New York: Springer.

Trích dẫn kiểu Chicago

Ehlers, Ulf-Daniel. Handbook On Quality and Standardisation in E-learning. New York: Springer, 2006.

ציטוט MLA

Ehlers, Ulf-Daniel. Handbook On Quality and Standardisation in E-learning. New York: Springer, 2006.