Oelkers, J. Elementary textbooks in the 18th century and their theory of the learning child. Scholarly knowledge : textbooks in early modern Europe.
Lua i Stíl Chicago (17ú heag.)Oelkers, Jürgen. "Elementary Textbooks in the 18th Century and Their Theory of the Learning Child." Scholarly Knowledge : Textbooks in Early Modern Europe .
Lua MLA (8ú heag.)Oelkers, Jürgen. "Elementary Textbooks in the 18th Century and Their Theory of the Learning Child." Scholarly Knowledge : Textbooks in Early Modern Europe, .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.