APA Style

Yoffie, D, B., Kwak, M. (2001). Judo Strategy: turning your competition's strengh to your advantage (1). Boston: Harvard Business School Press.

MLA Style

Yoffie, David, B.., Kwak, Mary. "Judo Strategy: turning your competition's strengh to your advantage". 1 Boston: Harvard Business School Press, 2001. Text.