Ridley-Duff, R., & Bull, M. (2011). Understanding social enterprise: Theory & practice. SAGE.
芝加哥风格引文Ridley-Duff, Rory, 与 Mike Bull. Understanding Social Enterprise: Theory & Practice. London ; Thousand Oaks, Calif.: SAGE, 2011.
MLA引文Ridley-Duff, Rory, 与 Mike Bull. Understanding Social Enterprise: Theory & Practice. SAGE, 2011.
警告：这些引文格式不一定是100％准确.