Swaim, R. W. (2010). The strategic Drucker: Growth strategies and marketing insights from the works of Peter Drucker. Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Swaim, Robert W. The Strategic Drucker: Growth Strategies and Marketing Insights from the Works of Peter Drucker. San Francisco: Jossey-Bass, 2010.
Lua MLA (9ú heag.)Swaim, Robert W. The Strategic Drucker: Growth Strategies and Marketing Insights from the Works of Peter Drucker. Jossey-Bass, 2010.
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