Cita APA (7th ed.)

Houghton Mifflin Company. (2002). Houghton Mifflin mathematics. Houghton Mifflin.

Cita Chicago (17th ed.)

Houghton Mifflin Company. Houghton Mifflin Mathematics. Boston: Houghton Mifflin, 2002.

Cita MLA (8th ed.)

Houghton Mifflin Company. Houghton Mifflin Mathematics. Houghton Mifflin, 2002.