APA-referens

Lawvere, F. W. (2009). Conceptual mathematics: A first introduction to categories (2nd ed.). Cambridge university.

Chicago-stil citat

Lawvere, F. William. Conceptual Mathematics: A First Introduction to Categories. 2nd ed. Cambridge: Cambridge university, 2009.

MLA-referens

Lawvere, F. William. Conceptual Mathematics: A First Introduction to Categories. 2nd ed. Cambridge university, 2009.