Cita APA (7a ed.)

Heath, M. F. (2000). European bird populations: Estimates and trends. BirdLife International.

Cita Chicago Style (17a ed.)

Heath, Melanie F. European Bird Populations: Estimates and Trends. Cambridge: BirdLife International, 2000.

Cita MLA (9a ed.)

Heath, Melanie F. European Bird Populations: Estimates and Trends. BirdLife International, 2000.