Dyfyniad APA

Sierra, J., & Constantin, P. (2011). Never kick a ghost and other silly chillers. Harper.

Dyfyniad Arddull Chicago

Sierra, Judy, and Pascale Constantin. Never Kick a Ghost and Other Silly Chillers. New York: Harper, 2011.

Dyfyniad MLA

Sierra, Judy, and Pascale Constantin. Never Kick a Ghost and Other Silly Chillers. Harper, 2011.

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