3 public-domain matches

Content And Language Of Textbooks

Cover of Recent Advances in Mathematics Textbook Research and Development

Recent Advances in Mathematics Textbook Research and Development

Unknown author

An Etymological Dictionary of the German Language

An Etymological Dictionary of the German Language

Friedrich Kluge

An Attempt Towards An International Language

An Attempt Towards An International Language

Ludwik Lejzer Zamenhof