Παραπομπή σε μορφή APA (7η εκδ.)

Levsen, N. (2015). Lead Markets in Age-Based Innovations: Demographic Change and Internationally Successful Innovations. Springer Fachmedien Wiesbaden : Imprint: Springer Gabler.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Levsen, Nils. Lead Markets in Age-Based Innovations: Demographic Change and Internationally Successful Innovations. Wiesbaden: Springer Fachmedien Wiesbaden : Imprint: Springer Gabler, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

Levsen, Nils. Lead Markets in Age-Based Innovations: Demographic Change and Internationally Successful Innovations. Springer Fachmedien Wiesbaden : Imprint: Springer Gabler, 2015.