Cita APA (7th ed.)

Barr, M. (1979). Autonomous categories. Springer-Verlag.

Cita Chicago (17th ed.)

Barr, Michael. Autonomous Categories. Berlín: Springer-Verlag, 1979.

Cita MLA (9th ed.)

Barr, Michael. Autonomous Categories. Springer-Verlag, 1979.