Παραπομπή σε μορφή APA (7η εκδ.)
American Association of Zoological Parks and Aquariums (AAZPA), IUCN. Species Survival Commission, The People's Trust for Endangered Species, WWF, & IUCN. (1991). Tortoises and freshwater turtles: An action plan for their conservation (2nd ed.). IUCN.
Παραπομπή σε μορφή Chicago (17η εκδ.)
American Association of Zoological Parks and Aquariums (AAZPA), IUCN. Species Survival Commission, The People's Trust for Endangered Species, WWF, και IUCN. Tortoises and Freshwater Turtles: An Action Plan for Their Conservation. 2nd ed. IUCN, 1991.
Παραπομπή σε μορφή MLA (9th εκδ.)
American Association of Zoological Parks and Aquariums (AAZPA), et al. Tortoises and Freshwater Turtles: An Action Plan for Their Conservation. 2nd ed. IUCN, 1991.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.