APA (7th ed.) Citation

Koponen, T., Isoviita, P., & Lammes, T. (1977). The bryophytes of Finland: An annotated checklist.

Chicago Style (17th ed.) Citation

Koponen, Timo, Pekka Isoviita, and Tapio Lammes. The Bryophytes of Finland: An Annotated Checklist. Helsinki, 1977.

MLA (9th ed.) Citation

Koponen, Timo, et al. The Bryophytes of Finland: An Annotated Checklist. 1977.