Dyfyniad APA
CAYCHO, L., & ET AL. COUNTING BY CHILDREN WITH DOWN SYNDROME.
Dyfyniad Arddull Chicago
CAYCHO, L., and ET AL. COUNTING BY CHILDREN WITH DOWN SYNDROME.
Dyfyniad MLA
CAYCHO, L., and ET AL. COUNTING BY CHILDREN WITH DOWN SYNDROME.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.