APA Alıntı

Adamek, J., Herrlich, H., & Strecker, G. E. (1990). Abstract and concrete categories: The joy of cats.

Chicago Stili Alıntı

Adamek, Jiri, Horst Herrlich, ve George E. Strecker. Abstract and Concrete Categories: The Joy of Cats. New York, Wiley and Sons, 1990.

MLA Alıntı

Adamek, Jiri, et al. Abstract and Concrete Categories: The Joy of Cats. 1990.