Citazione Stile APA (7a Edizione)

Alderton, D. (2014). The World Encyclopedia of Birds. Hermes House.

Citazione stile Chigago Style (17a edizione)

Alderton, David. The World Encyclopedia of Birds. London: Hermes House, 2014.

Citatione MLA (9a ed.)

Alderton, David. The World Encyclopedia of Birds. Hermes House, 2014.