Cita APA (7a ed.)

Luhmann, N. (1990). Political theory in the welfare state. Walter de Gruyter.

Cita Chicago Style (17a ed.)

Luhmann, Niklas. Political Theory in the Welfare State. Berlin ; New York: Walter de Gruyter, 1990.

Cita MLA (9a ed.)

Luhmann, Niklas. Political Theory in the Welfare State. Walter de Gruyter, 1990.