APA aipamena

Müller. (2013). Design Characteristics of Virtual Learning Environments (1.). Springer Fachmedien Wiesbaden.

Chicago Style aipamena

Müller. Design Characteristics of Virtual Learning Environments. 1. Springer Fachmedien Wiesbaden, 2013.

MLA aipamena

Müller. Design Characteristics of Virtual Learning Environments. 1. Springer Fachmedien Wiesbaden, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.