Dyfyniad APA

Filomat. University of Nis, Faculty of Sciences and Mathematics.

Dyfyniad Arddull Chicago

Filomat. University of Nis, Faculty of Sciences and Mathematics.

Dyfyniad MLA

Filomat. University of Nis, Faculty of Sciences and Mathematics.

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