Dyfyniad APA

Gutman, D., & Paillot, J. (2009). Dr. Brad has gone mad! Harper.

Dyfyniad Arddull Chicago

Gutman, Dan, and Jim Paillot. Dr. Brad Has Gone Mad! New York: Harper, 2009.

Dyfyniad MLA

Gutman, Dan, and Jim Paillot. Dr. Brad Has Gone Mad! Harper, 2009.

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