APA (7th ed.) Citation

Bocher, T. W., Holmen, K., & Jakobsen, K. (1968). The Flora of Greenland. Haase.

Chicago Style (17th ed.) Citation

Bocher, Tyge W., Kjeld Holmen, and Knud Jakobsen. The Flora of Greenland. Copenhagen: Haase, 1968.

MLA (8th ed.) Citation

Bocher, Tyge W., et al. The Flora of Greenland. Haase, 1968.