Cita APA (7th ed.)

Bello, I., & Britton, J. R. (2001). Topics in contemporary mathematics (7th ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Bello, Ignacio, i Jack R. Britton. Topics in Contemporary Mathematics. 7th ed. Boston, MA: Houghton Mifflin, 2001.

Cita MLA (9th ed.)

Bello, Ignacio, i Jack R. Britton. Topics in Contemporary Mathematics. 7th ed. Houghton Mifflin, 2001.