Cita APA (7a ed.)

Herrlich, H., & Strecker, G. E. (1973). Category theory: An introduction. Allyn & Bacon.

Cita Chicago Style (17a ed.)

Herrlich, Horst, y George E. Strecker. Category Theory: An Introduction. Boston: Allyn & Bacon, 1973.

Cita MLA (8a ed.)

Herrlich, Horst, y George E. Strecker. Category Theory: An Introduction. Allyn & Bacon, 1973.