APA (7th ed.) Citation

Enell, C., Steen, Å., Wagner, T., Frieß, U., Pfeilsticker, K., Platt, U., & Fricke, K. (1999). Occurrence of polar stratospheric clouds at Kiruna. Annales Geophysicae, 17(11), 1457.

Chicago Style (17th ed.) Citation

Enell, C.-F, Å Steen, T. Wagner, U. Frieß, K. Pfeilsticker, U. Platt, and K.-H Fricke. "Occurrence of Polar Stratospheric Clouds at Kiruna." Annales Geophysicae 17, no. 11 (1999): 1457.

MLA (9th ed.) Citation

Enell, C.-F, et al. "Occurrence of Polar Stratospheric Clouds at Kiruna." Annales Geophysicae, vol. 17, no. 11, 1999, p. 1457.