Tracy, B. (2017). Master your time, master your life: The breakthrough system to get more results, faster, in every area of your life (Unabridged.). Your Coach Digital.
Style de citation Chicago (17e éd.)Tracy, Brian. Master Your Time, Master Your Life: The Breakthrough System to Get More Results, Faster, in Every Area of Your Life. Unabridged. Rego Park: Your Coach Digital, 2017.
Style de citation MLA (8e éd.)Tracy, Brian. Master Your Time, Master Your Life: The Breakthrough System to Get More Results, Faster, in Every Area of Your Life. Unabridged. Your Coach Digital, 2017.
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