Παραπομπή σε μορφή APA (7η εκδ.)

Hancocks, D. Zoo animals as entertainment exhibitions: David Hancocks. A cultural history of animals in the modern age.(2007).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hancocks, David. "Zoo Animals as Entertainment Exhibitions: David Hancocks." A Cultural History of Animals in the Modern Age.(2007) .

Παραπομπή σε μορφή MLA (8th εκδ.)

Hancocks, David. "Zoo Animals as Entertainment Exhibitions: David Hancocks." A Cultural History of Animals in the Modern Age.(2007), .