APA Style

Porter, Michael E.. (2008). On Competition: Updated and Expanded Edition . Boston, Massachusetts: Harvard Business School Pub..

Chicago Style

Porter, Michael E.. On Competition: Updated and Expanded Edition. Boston, Massachusetts: Harvard Business School Pub., 2008. Text.

MLA Style

Porter, Michael E.. On Competition: Updated and Expanded Edition. Boston, Massachusetts: Harvard Business School Pub., 2008. Text.

Turabian Style

Porter, Michael E.. On Competition: Updated and Expanded Edition. Boston, Massachusetts: Harvard Business School Pub., 2008. Print.