Dyfyniad APA

Norman Bridwell. (1997). Clifford's Spring Clean-Up (Clifford the Big Red Dog) (21st Printing.). Cartwheel.

Dyfyniad Arddull Chicago

Norman Bridwell. Clifford's Spring Clean-Up (Clifford the Big Red Dog). 21st Printing. Cartwheel, 1997.

Dyfyniad MLA

Norman Bridwell. Clifford's Spring Clean-Up (Clifford the Big Red Dog). 21st Printing. Cartwheel, 1997.

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