Napper, P. (2019). The power of agency: The 7 principles to conquer obstacles, make effective decisions, and create a life on your own terms. St. Martin's Press.
Lua i Stíl Chicago (17ú heag.)Napper, Paul. The Power of Agency: The 7 Principles to Conquer Obstacles, Make Effective Decisions, and Create a Life on Your Own Terms. New York: St. Martin's Press, 2019.
Lua MLA (9ú heag.)Napper, Paul. The Power of Agency: The 7 Principles to Conquer Obstacles, Make Effective Decisions, and Create a Life on Your Own Terms. St. Martin's Press, 2019.
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