Hastings, H., & Saperstein, J. (2014). Service thinking: The seven principles to discover innovative opportunities (First edition.). Business Expert Press.
Chicago Style (17. basım) AtıfHastings, Hunter, ve Jeff Saperstein. Service Thinking: The Seven Principles to Discover Innovative Opportunities. First edition. New York: Business Expert Press, 2014.
MLA (9th ed.) AtıfHastings, Hunter, ve Jeff Saperstein. Service Thinking: The Seven Principles to Discover Innovative Opportunities. First edition. Business Expert Press, 2014.
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