Dyfyniad APA

Courant, R. a. R. H. (1946). What is mathematics? Oxford University.

Dyfyniad Arddull Chicago

Courant, Richard and Robbins Herbert. What Is Mathematics? Oxford University, 1946.

Dyfyniad MLA

Courant, Richard and Robbins Herbert. What Is Mathematics? Oxford University, 1946.

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