एपीए उद्धरण

Northcott, G. (1973). A first course of homological algebra. Cambridge University Press.

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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