APA (7th ed.) Citation

Zook, C. (2004). Beyond the core: Expand your market without abandoning your roots. Harvard Business School Pub.

Chicago Style (17th ed.) Citation

Zook, Chris. Beyond the Core: Expand Your Market Without Abandoning Your Roots. Boston: Harvard Business School Pub, 2004.

MLA (9th ed.) Citation

Zook, Chris. Beyond the Core: Expand Your Market Without Abandoning Your Roots. Harvard Business School Pub, 2004.