Hamlin, D. D. (2007). Work and play: The production and consumption of toys in Germany, 1870 - 1914 / David D. Hamlin. University of Michigan Press.
Lua i Stíl Chicago (17ú heag.)Hamlin, David D. Work and Play: The Production and Consumption of Toys in Germany, 1870 - 1914 / David D. Hamlin. Ann Arbor: University of Michigan Press, 2007.
Lua MLA (8ú heag.)Hamlin, David D. Work and Play: The Production and Consumption of Toys in Germany, 1870 - 1914 / David D. Hamlin. University of Michigan Press, 2007.
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