Cita APA

Peterson, R., Hollom, P., & Mountford, G. (1983). A field guide to the birds of Britain and Europe (4 ed.). London: Collins Sons.

Citación estilo Chicago

Peterson, Roger, P.A.D Hollom, y Guy Mountford. A Field Guide to the Birds of Britain and Europe. 4 ed. London: Collins Sons, 1983.

Cita MLA

Peterson, Roger, P.A.D Hollom, y Guy Mountford. A Field Guide to the Birds of Britain and Europe. 4 ed. London: Collins Sons, 1983.

Precaución: Estas citas no son 100% exactas.