Cita APA (7a ed.)

Pain, D. J., & Pienkowski, M. W. (1997). Farming and birds in Europe: The common agricultural policy and its implications for bird conservation. Academic Press.

Cita Chicago Style (17a ed.)

Pain, Deborah J., y M. W. Pienkowski. Farming and Birds in Europe: The Common Agricultural Policy and Its Implications for Bird Conservation. San Diego [etc.]: Academic Press, 1997.

Cita MLA (9a ed.)

Pain, Deborah J., y M. W. Pienkowski. Farming and Birds in Europe: The Common Agricultural Policy and Its Implications for Bird Conservation. Academic Press, 1997.