Dyfyniad APA

Hersh, R. (1997). What is mathematics, really? Vintage.

Dyfyniad Arddull Chicago

Hersh, Reuben. What Is Mathematics, Really? London: Vintage, 1997.

Dyfyniad MLA

Hersh, Reuben. What Is Mathematics, Really? Vintage, 1997.

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