APA-Zitierstil (7. Ausg.)

Goward, T., McCune, B., & Meidinger, D. V. (1994). The lichens of British Columbia: Illustrated keys. Ministry of Forests Research Program.

Chicago-Zitierstil (17. Ausg.)

Goward, Trevor, Bruce McCune, und Dellis Vern Meidinger. The Lichens of British Columbia: Illustrated Keys. Victoria, B.C: Ministry of Forests Research Program, 1994.

MLA-Zitierstil (9. Ausg.)

Goward, Trevor, et al. The Lichens of British Columbia: Illustrated Keys. Ministry of Forests Research Program, 1994.