Cita APA (7a ed.)

Demana, F. D. (2015). Precalculus: Graphical, numerical, algebraic (Ninth edition, Global edition.). Pearson.

Cita Chicago Style (17a ed.)

Demana, Franklin D. Precalculus: Graphical, Numerical, Algebraic. Ninth edition, Global edition. Boston: Pearson, 2015.

Cita MLA (8a ed.)

Demana, Franklin D. Precalculus: Graphical, Numerical, Algebraic. Ninth edition, Global edition. Pearson, 2015.