Cita APA (7a ed.)

Johnstone, P. T. (2002). Sketches of an Elephant: A topos theory compendium. [S.n.].

Cita Chicago Style (17a ed.)

Johnstone, Peter T. Sketches of an Elephant: A Topos Theory Compendium. Oxford: [S.n.], 2002.

Cita MLA (9a ed.)

Johnstone, Peter T. Sketches of an Elephant: A Topos Theory Compendium. [S.n.], 2002.

Precaución: Estas citas no son 100% exactas.