APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Johnstone, P.T. Topos Theory. London: Academic Press, Inc, 1977.

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.