APA-Zitierstil (7. Ausg.)

Day, R., & Catling, P. M. (1991). The rare vascular plants of Prince Edward Island. Canadian Museum of Nature.

Chicago-Zitierstil (17. Ausg.)

Day, Robin, und Paul M. Catling. The Rare Vascular Plants of Prince Edward Island. Ottawa: Canadian Museum of Nature, 1991.

MLA-Zitierstil (9. Ausg.)

Day, Robin, und Paul M. Catling. The Rare Vascular Plants of Prince Edward Island. Canadian Museum of Nature, 1991.