Abrahamson Eric & Freedman David. (2006). Perfect Mess: The Hidden Benfits of Disorder. Phoenix Peparback.
Chicago Style (17. basım) AtıfAbrahamson Eric ve Freedman David. Perfect Mess: The Hidden Benfits of Disorder. London ,UK: Phoenix Peparback, 2006.
MLA (9th ed.) AtıfAbrahamson Eric ve Freedman David. Perfect Mess: The Hidden Benfits of Disorder. Phoenix Peparback, 2006.
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