APA-referens (7:e uppl.)

Pareigis, B. (1970). Categories and functors. Academic Press.

Chicago-referens (17:e uppl.)

Pareigis, Bodo. Categories and Functors. New York: Academic Press, 1970.

MLA-referens (9:e uppl.)

Pareigis, Bodo. Categories and Functors. Academic Press, 1970.