Siegel, J. B. (2006). A desktop guide for nonprofit directors, officers, and advisors: Avoiding trouble while doing good. Hoboken, N.J: John Wiley & Sons.
استشهاد بنمط شيكاغوSiegel, Jack B. A Desktop Guide for Nonprofit Directors, Officers, and Advisors: Avoiding Trouble While Doing Good. Hoboken, N.J: John Wiley & Sons, 2006.
MLA استشهادSiegel, Jack B. A Desktop Guide for Nonprofit Directors, Officers, and Advisors: Avoiding Trouble While Doing Good. Hoboken, N.J: John Wiley & Sons, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.