Cita APA

Jellis, R., Darling, F. F., & Goodwin, D. (1977). Bird sounds and their meaning. Londres: British Broadcasting.

Citación estilo Chicago

Jellis, Rosemary, F. F. Darling, y D. Goodwin. Bird Sounds and Their Meaning. Londres: British Broadcasting, 1977.

Cita MLA

Jellis, Rosemary, F. F. Darling, y D. Goodwin. Bird Sounds and Their Meaning. Londres: British Broadcasting, 1977.