APA (7th ed.) Citation

Bjelke, R., & Shapiro, D. (1986). Northern light: One couple's epic voyage from the Arctic to the Antarctic (1. American ed.). Potter.

Chicago Style (17th ed.) Citation

Bjelke, Rolf, and Deborah Shapiro. Northern Light: One Couple's Epic Voyage from the Arctic to the Antarctic. 1. American ed. New York: Potter, 1986.

MLA (9th ed.) Citation

Bjelke, Rolf, and Deborah Shapiro. Northern Light: One Couple's Epic Voyage from the Arctic to the Antarctic. 1. American ed. Potter, 1986.