Campbell, R. (1997). A whale of a show. New York: Macmillan/McGraw-Hill.
Dyfyniad Arddull ChicagoCampbell, Robert. A Whale of a Show. New York: Macmillan/McGraw-Hill, 1997.
Dyfyniad MLACampbell, Robert. A Whale of a Show. New York: Macmillan/McGraw-Hill, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.