APA (7th ed.) Citation

Johnstone, P. T. (2002). Sketches of an elephant: A topos theory compendium. Oxford University Press.

Chicago Style (17th ed.) Citation

Johnstone, P. T. Sketches of an Elephant: A Topos Theory Compendium. Oxford ; New York: Oxford University Press, 2002.

MLA (9th ed.) Citation

Johnstone, P. T. Sketches of an Elephant: A Topos Theory Compendium. Oxford University Press, 2002.