Sharpnack, R. (2007). Trade up!: Five steps for redesigning your leadership and life from the inside out. San Francisco: Jossey-Bass,J. Wiley & Sons.
Čikaški stil citiranjaSharpnack, Rayona. Trade Up!: Five Steps for Redesigning Your Leadership and Life From the Inside Out. San Francisco: Jossey-Bass,J. Wiley & Sons, 2007.
MLA način citiranjaSharpnack, Rayona. Trade Up!: Five Steps for Redesigning Your Leadership and Life From the Inside Out. San Francisco: Jossey-Bass,J. Wiley & Sons, 2007.
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