Creative Playthings (Russian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Creative Playthings" in Russian language version.

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Solomon, Susan G. American Playgrounds: Revitalizing Community Space (англ.). — Lebanon, NH: The University Press of New England, 2005. — ISBN 1-58465-517-8.

Caplan, Theresa. Frank Caplan: Champion of Child’s Play (неопр.). — New York: Vantage Press^[англ.], 1999. — ISBN 0-533-12955-9.
Ogata, Amy F. Creative Playthings: Educational Toys and Postwar American Culture (англ.) // Winterthur Portfolio^[англ.] : journal. — 2004. — Summer-Autumn (vol. 39, no. 2/3). — P. 129—156.