APA (7th ed.) Citation
Johnstone, P. T. (2002). Sketches of an Elephant: A Topos Theory Compendium, Vol. 1. Clarendon press.
Chicago Style (17th ed.) Citation
Johnstone, Peter T. Sketches of an Elephant: A Topos Theory Compendium, Vol. 1. Oxford: Clarendon press, 2002.
MLA (9th ed.) Citation
Johnstone, Peter T. Sketches of an Elephant: A Topos Theory Compendium, Vol. 1. Clarendon press, 2002.
Warning: These citations may not always be 100% accurate.