Cita APA (7a ed.)

Bergmann, F. (1977). On being free. University of Notre Dame Press.

Cita Chicago Style (17a ed.)

Bergmann, Frithjof. On Being Free. Notre Dame: University of Notre Dame Press, 1977.

Cita MLA (8a ed.)

Bergmann, Frithjof. On Being Free. University of Notre Dame Press, 1977.