Puri, S. Case study: Expand the menu? Harvard Business Review.
Lua i Stíl Chicago (17ú heag.)Puri, Sandeep. "Case Study: Expand the Menu?" Harvard Business Review .
Lua MLA (9ú heag.)Puri, Sandeep. "Case Study: Expand the Menu?" Harvard Business Review, .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.