Cita APA (7a ed.)

Walker, A., & Naegele, G. (1999). The politics of old age in Europe. Open University Press.

Cita Chicago Style (17a ed.)

Walker, Alan, y Gerhard Naegele. The Politics of Old Age in Europe. Buckingham [England] ; Philadelphia: Open University Press, 1999.

Cita MLA (9a ed.)

Walker, Alan, y Gerhard Naegele. The Politics of Old Age in Europe. Open University Press, 1999.