Cita APA (7a ed.)

Freyd, P. (1964). Abelian categories an introduction to the theory of functors (1a ed.). Harper International Edition.

Cita Chicago Style (17a ed.)

Freyd, Peter. Abelian Categories an Introduction to the Theory of Functors. 1a ed. New York: Harper International Edition, 1964.

Cita MLA (9a ed.)

Freyd, Peter. Abelian Categories an Introduction to the Theory of Functors. 1a ed. Harper International Edition, 1964.