Παραπομπή σε μορφή APA (7η εκδ.)

Crow, G. E., & Hellquist, C. B. (2000). Aquatic and wetland plants of northeastern North America: A manual of aquatic plants. University of Wisconsin Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Crow, Garrett E., και C. Barre Hellquist. Aquatic and Wetland Plants of Northeastern North America: A Manual of Aquatic Plants. Madison, Wis: University of Wisconsin Press, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

Crow, Garrett E., και C. Barre Hellquist. Aquatic and Wetland Plants of Northeastern North America: A Manual of Aquatic Plants. University of Wisconsin Press, 2000.