Ryall, M. D. The new dynamics of competition. Harvard Business Review.
Lua i Stíl Chicago (17ú heag.)Ryall, Michael D. "The New Dynamics of Competition." Harvard Business Review .
Lua MLA (9ú heag.)Ryall, Michael D. "The New Dynamics of Competition." Harvard Business Review, .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.