ebrary, Inc, Sroufe, R. P., & Sarkis, J. (2007). Strategic sustainability: The state of the art in corporate environmental management systems. Greenleaf Pub..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, Robert Paul Sroufe, و Joseph Sarkis. Strategic Sustainability: The State of the Art in Corporate Environmental Management Systems. Sheffield, U.K.: Greenleaf Pub., 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, et al. Strategic Sustainability: The State of the Art in Corporate Environmental Management Systems. Greenleaf Pub., 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.