Dyfyniad APA

Abbott, E. A., Lindgren, W. F., & Banchoff, T. (2010). Flatland. Cambridge University Press : Mathematical Association of America.

Dyfyniad Arddull Chicago

Abbott, Edwin Abbott, William F. Lindgren, and Thomas Banchoff. Flatland. Cambridge ; New York ; Washington, District of Columbia: Cambridge University Press : Mathematical Association of America, 2010.

Dyfyniad MLA

Abbott, Edwin Abbott, et al. Flatland. Cambridge University Press : Mathematical Association of America, 2010.

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