Cita APA (7a ed.)
Kosslyn, S. Better PowerPoint (R). Oxford University Press, Incorporated.
Cita Chicago Style (17a ed.)
Kosslyn, Stephen. Better PowerPoint (R). US: Oxford University Press, Incorporated.
Cita MLA (9a ed.)
Kosslyn, Stephen. Better PowerPoint (R). Oxford University Press, Incorporated.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.