APA Style

KEUPP, M, M. (2015). The Northern Sea Route: A Comprehensive Analysis . Springer Gabler Wiesbaden: Springer Gabler Wiesbaden.

MLA Style

KEUPP, Marcus, Matthias. "The Northern Sea Route: A Comprehensive Analysis". Springer Gabler Wiesbaden: Springer Gabler Wiesbaden, 2015. Text.