Author:Karl Groos
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a German philosopher and psychologist who proposed an evolutionary instrumentalist theory of play.
Works[edit]
- Die Spiele der Tiere (Jena 1896); translated by E. L. Baldwin as The Play of Animals (New York 1898) (3rd German ed. 1930)
- Die Spiele der Menschen (Jena 1899); translated by E. L. Baldwin as The Play of Man (New York 1901) (many editions)
Some or all works by this author are in the public domain in the United States because they were published before January 1, 1929.
This author died in 1946, so works by this author are in the public domain in countries and areas where the copyright term is the author's life plus 77 years or less. 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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