Cita APA (7a ed.)

(1973). Revisión de Bruun, The Hamlyn guide to birds of Britain and Europe.

Cita Chicago Style (17a ed.)

Revisión De Bruun, The Hamlyn Guide to Birds of Britain and Europe. 1973.

Cita MLA (8a ed.)

Revisión De Bruun, The Hamlyn Guide to Birds of Britain and Europe. 1973.