Cita APA (7a ed.)

Ryan, M. (2019). Geometry essentials for dummies (1st edition.). John Wiley and Sons..

Cita Chicago Style (17a ed.)

Ryan, Mark. Geometry Essentials for Dummies. 1st edition. Indianapolis, IN: John Wiley and Sons., 2019.

Cita MLA (8a ed.)

Ryan, Mark. Geometry Essentials for Dummies. 1st edition. John Wiley and Sons., 2019.