Dyfyniad APA

CHILDCRAFT: SHAPES AND NUMBERS. World Book.

Dyfyniad Arddull Chicago

CHILDCRAFT: SHAPES AND NUMBERS. World Book.

Dyfyniad MLA

CHILDCRAFT: SHAPES AND NUMBERS. World Book.

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