Cassels,Andrew. (1997). A guide to sector - wide approaches for health development: Concepts, issues and working arrangements. World Health Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cassels,Andrew. A Guide to Sector - Wide Approaches for Health Development: Concepts, Issues and Working Arrangements. World Health Organization, 1997.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cassels,Andrew. A Guide to Sector - Wide Approaches for Health Development: Concepts, Issues and Working Arrangements. World Health Organization, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.