Cita APA (7a ed.)

Paterson, W. E., & Thomas, A. H. (1977). Social democratic parties in Western Europe. London: Croom Helm.

Cita Chicago Style (17a ed.)

Paterson, William E., y Alastair H. Thomas. Social Democratic Parties in Western Europe. London: Croom Helm, 1977.

Cita MLA (8a ed.)

Paterson, William E., y Alastair H. Thomas. Social Democratic Parties in Western Europe. London: Croom Helm, 1977.