Ofek, E. Case study: From niche to mainstream. Harvard Business Review.
Cita Chicago (17th ed.)Ofek, Elie. "Case Study: From Niche to Mainstream." Harvard Business Review .
Cita MLA (9th ed.)Ofek, Elie. "Case Study: From Niche to Mainstream." Harvard Business Review, .
Atenció: Aquestes cites poden no estar 100% correctes.