Dyfyniad APA

COWAN, E. Writing brief edition#Clifzabeth Cowan. Scott Foresman and Company.

Dyfyniad Arddull Chicago

COWAN, Elizabeth. Writing Brief Edition#Clifzabeth Cowan. Scott Foresman and Company.

Dyfyniad MLA

COWAN, Elizabeth. Writing Brief Edition#Clifzabeth Cowan. Scott Foresman and Company.

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