Dyfyniad APA

Abrahamson Eric & Freedman David. (2006). Perfect Mess: The Hidden Benfits of Disorder. Phoenix Peparback.

Dyfyniad Arddull Chicago

Abrahamson Eric and Freedman David. Perfect Mess: The Hidden Benfits of Disorder. London ,UK: Phoenix Peparback, 2006.

Dyfyniad MLA

Abrahamson Eric and Freedman David. Perfect Mess: The Hidden Benfits of Disorder. Phoenix Peparback, 2006.

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