Παραπομπή σε μορφή APA (7η εκδ.)

Wellner, K. (2015). User Innovators in the Silver Market: An Empirical Study among Camping Tourists. Springer Fachmedien Wiesbaden : Imprint: Springer Gabler.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wellner, Konstantin. User Innovators in the Silver Market: An Empirical Study Among Camping Tourists. Wiesbaden: Springer Fachmedien Wiesbaden : Imprint: Springer Gabler, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wellner, Konstantin. User Innovators in the Silver Market: An Empirical Study Among Camping Tourists. Springer Fachmedien Wiesbaden : Imprint: Springer Gabler, 2015.