APA (7th ed.) Citation

Kohler, J., Tronstad, S., & Melland, G. (2008). GPS profile Troll Station - South Pole (IPY 2007-2009). Norwegian Polar Institute.

Chicago Style (17th ed.) Citation

Kohler, Jack, Stein Tronstad, and Gudmund Melland. GPS Profile Troll Station - South Pole (IPY 2007-2009). Norwegian Polar Institute, 2008.

MLA (9th ed.) Citation

Kohler, Jack, et al. GPS Profile Troll Station - South Pole (IPY 2007-2009). Norwegian Polar Institute, 2008.