Cita APA (7a ed.)

National Geographic Book Service, National Geographic Society (Estats Units d'Amèrica), Biblioteca President Pujol (Biblioteca de Catalunya), & Tourtellot, J. B. (1985). Discovering Britain & Ireland. National Geographic Society.

Cita Chicago Style (17a ed.)

National Geographic Book Service, National Geographic Society (Estats Units d'Amèrica), Biblioteca President Pujol (Biblioteca de Catalunya), y Jonathan B. Tourtellot. Discovering Britain & Ireland. Washington D.C.: National Geographic Society, 1985.

Cita MLA (9a ed.)

National Geographic Book Service, et al. Discovering Britain & Ireland. National Geographic Society, 1985.