Ridley-Duff, R., & Bull, M. (2011). Understanding social enterprise: Theory & practice. SAGE.
Cita Chicago (17th ed.)Ridley-Duff, Rory, i Mike Bull. Understanding Social Enterprise: Theory & Practice. London ; Thousand Oaks, Calif.: SAGE, 2011.
Cita MLA (8th ed.)Ridley-Duff, Rory, i Mike Bull. Understanding Social Enterprise: Theory & Practice. SAGE, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.