Saperstein, J., & Hastings, H. (2014). Service Thinking: The Seven Principles to Discover Innovative Opportunities. Business Expert Press.
استشهاد بنمط شيكاغوSaperstein, Jeff, و Hunter Hastings. Service Thinking: The Seven Principles to Discover Innovative Opportunities. Business Expert Press, 2014.
MLA استشهادSaperstein, Jeff, و Hunter Hastings. Service Thinking: The Seven Principles to Discover Innovative Opportunities. Business Expert Press, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.