Kohlstedt, S. G. (2010). Teaching children science: Hands-on nature study in North America, 1890-1930. University of Chicago Press.
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Chicago Style (17th ed.) Zitazioa
Kohlstedt, Sally Gregory. Teaching Children Science: Hands-on Nature Study in North America, 1890-1930. Chicago ; London: University of Chicago Press, 2010.
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MLA (9th ed.) Zitazioa
Kohlstedt, Sally Gregory. Teaching Children Science: Hands-on Nature Study in North America, 1890-1930. University of Chicago Press, 2010.
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