एपीए उद्धरण

Johnstone, P. T. (1977). Topos theory. Academic Press.

शिकागो स्टाइल उद्धरण

Johnstone, P. T. Topos Theory. London ; New York: Academic Press, 1977.

एमएलए उद्धरण

Johnstone, P. T. Topos Theory. Academic Press, 1977.