MLA

Sänn, Alexander. The Preference-driven Lead User Method for New Product Development. Springer Fachmedien Wiesbaden, 2017.

APA

Sänn, A. (2017). The Preference-Driven Lead User Method for New Product Development. Springer Fachmedien Wiesbaden.

Chicago

Sänn, Alexander The Preference-Driven Lead User Method for New Product Development. : Springer Fachmedien Wiesbaden, 2017.