VON Oech. (2002). Expect the unexpected or you won't find it: A creativity tool based on the ancient wisdom of Heraclitus. Berrett-Koehler Pubs..
Chicago Style (17th ed.) CitationVON Oech. Expect the Unexpected or You Won't Find It: A Creativity Tool Based on the Ancient Wisdom of Heraclitus. San Francisco: Berrett-Koehler Pubs., 2002.
MLA (9th ed.) CitationVON Oech. Expect the Unexpected or You Won't Find It: A Creativity Tool Based on the Ancient Wisdom of Heraclitus. Berrett-Koehler Pubs., 2002.
Warning: These citations may not always be 100% accurate.