Dyfyniad APA

Yelland, N., Butler, D. A., & Diezmann, C. (2014). Early mathematical explorations. Cambridge University.

Dyfyniad Arddull Chicago

Yelland, Nicola, Deborah A. Butler, and Carmel Diezmann. Early Mathematical Explorations. New York: Cambridge University, 2014.

Dyfyniad MLA

Yelland, Nicola, et al. Early Mathematical Explorations. Cambridge University, 2014.

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