Oelkers, J. Elementary textbooks in the 18th century and their theory of the learning child. Scholarly knowledge : textbooks in early modern Europe.
Chicago-referens (17:e uppl.)Oelkers, Jürgen. "Elementary Textbooks in the 18th Century and Their Theory of the Learning Child." Scholarly Knowledge : Textbooks in Early Modern Europe .
MLA-referens (8:e uppl.)Oelkers, Jürgen. "Elementary Textbooks in the 18th Century and Their Theory of the Learning Child." Scholarly Knowledge : Textbooks in Early Modern Europe, .
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