APA (7th ed.) Citation

Hagerup, A. T., Arngrimson, F. B., & Chamberlain, M. (1891). The birds of Greenland. Little, Brown and company.

Chicago Style (17th ed.) Citation

Hagerup, Andreas T., Frimann B. Arngrimson, and Montague Chamberlain. The Birds of Greenland. Boston: Little, Brown and company, 1891.

MLA (9th ed.) Citation

Hagerup, Andreas T., et al. The Birds of Greenland. Little, Brown and company, 1891.