Author:Gordon Haddon Clark
Some or all works by this author are in the public domain in the United States because they were legally published within the United States (or the United Nations Headquarters in New York subject to Section 7 of the United States Headquarters Agreement) before 1964, and copyright was not renewed.
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- For other renewal records of publications between 1922–1950 see the University of Pennsylvania copyright records scans.
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- See also the Rutgers copyright renewal records for further information.
These works may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
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