Dyfyniad APA

Chang, G., & Sederberg, T. W. (1997). Over and over again. Mathematical Association of America.

Dyfyniad Arddull Chicago

Chang, Gengzhe, and Thomas W. Sederberg. Over and over Again. Washington, DC: Mathematical Association of America, 1997.

Dyfyniad MLA

Chang, Gengzhe, and Thomas W. Sederberg. Over and over Again. Mathematical Association of America, 1997.

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