Pleuthner, W. A. (1952). More power for your proven plans and projects. Farrar, Straus and Young.
Lua i Stíl Chicago (17ú heag.)Pleuthner, Willard Augustus. More Power for Your Proven Plans and Projects. Farrar, Straus and Young, 1952.
Lua MLA (9ú heag.)Pleuthner, Willard Augustus. More Power for Your Proven Plans and Projects. Farrar, Straus and Young, 1952.
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