APA-referens

Adamek, J., Herrlich, H., & Strecker, G. (1990). Abstract and concrete categories. John Wiley.

Chicago-stil citat

Adamek, Jiri, Horst Herrlich, och George Strecker. Abstract and Concrete Categories. New York: John Wiley, 1990.

MLA-referens

Adamek, Jiri, et al. Abstract and Concrete Categories. John Wiley, 1990.