Citazione Stile APA (7a Edizione)

Northcott, D. G. (1972). An introduction to homological algebra. Cambridge University.

Citazione stile Chigago Style (17a edizione)

Northcott, D. G. An Introduction to Homological Algebra. Cambridge: Cambridge University, 1972.

Citatione MLA (9a ed.)

Northcott, D. G. An Introduction to Homological Algebra. Cambridge University, 1972.