Cita APA (7a ed.)

Northocott, D. (1962). An introduction to homological algebra (1a ed.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Northocott, D.G. An Introduction to Homological Algebra. 1a ed. Cambridge: Cambridge University Press, 1962.

Cita MLA (9a ed.)

Northocott, D.G. An Introduction to Homological Algebra. 1a ed. Cambridge University Press, 1962.