Dyfyniad APA

Welch, J., & Welch, S. (2015). Winning. Harper Collins Publishers.

Dyfyniad Arddull Chicago

Welch, Jack, and Suzy Welch. Winning. London: Harper Collins Publishers, 2015.

Dyfyniad MLA

Welch, Jack, and Suzy Welch. Winning. Harper Collins Publishers, 2015.

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