Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.