Dyfyniad APA

Devine, D. F. \. O. (1991). Elementary mathematics for teachers (2.). John Wiley & Sons.

Dyfyniad Arddull Chicago

Devine, Donald F. \ Olson. Elementary Mathematics for Teachers. 2. España: John Wiley & Sons, 1991.

Dyfyniad MLA

Devine, Donald F. \ Olson. Elementary Mathematics for Teachers. 2. John Wiley & Sons, 1991.

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