APA aipamena

La Piana, D. (2005). Play to win: The nonprofit guide to competitive strategy. San Francisco: Jossey-Bass.

Chicago Style aipamena

La Piana, David. Play to Win: The Nonprofit Guide to Competitive Strategy. San Francisco: Jossey-Bass, 2005.

MLA aipamena

La Piana, David. Play to Win: The Nonprofit Guide to Competitive Strategy. San Francisco: Jossey-Bass, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.