Παραπομπή APA

Northcott, D. G. (1973). A First Course of Homological Algebra. Cambridge University Press.

Παραπομπή Chicago Style

Northcott, D. G. A First Course of Homological Algebra. Cambridge: Cambridge University Press, 1973.

Παραπομπή MLA

Northcott, D. G. A First Course of Homological Algebra. Cambridge University Press, 1973.