APA (7th ed.) Citation

Hagen, J. O., Liestøl, O., Roland, E., & Jørgensen, T. (1993). Glacier atlas of Svalbard and Jan Mayen.

Chicago Style (17th ed.) Citation

Hagen, Jon Ove, Olav Liestøl, Erik Roland, and Torild Jørgensen. Glacier Atlas of Svalbard and Jan Mayen. 1993.

MLA (9th ed.) Citation

Hagen, Jon Ove, et al. Glacier Atlas of Svalbard and Jan Mayen. 1993.