APA (7th ed.) Citation

Wiefels, P. (2002). The chasm companion: A fieldbook to crossing the chasm and inside the tornado. Harper Business.

Chicago Style (17th ed.) Citation

Wiefels, Paul. The Chasm Companion: A Fieldbook to Crossing the Chasm and Inside the Tornado. New York: Harper Business, 2002.

MLA (9th ed.) Citation

Wiefels, Paul. The Chasm Companion: A Fieldbook to Crossing the Chasm and Inside the Tornado. Harper Business, 2002.