APA (7th ed.) Citation

Fredskild, B., Bay, C., Feilberg, J., & Mogensen, G. S. (1992). Grønlands Botaniske Undersøgelse. Greenland Botanical Survey. 1991.

Chicago Style (17th ed.) Citation

Fredskild, Bent, Christian Bay, Jon Feilberg, and Gert Steen Mogensen. Grønlands Botaniske Undersøgelse. Greenland Botanical Survey. 1991. 1992.

MLA (9th ed.) Citation

Fredskild, Bent, et al. Grønlands Botaniske Undersøgelse. Greenland Botanical Survey. 1991. 1992.