tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”:
Thorvaldur Johnson. The Dominion Rust Research Laboratory, 1925-1957
tandfonline.com – Thorvaldur Johnson. The Dominion Rust Research Laboratory, 1925-1957
![](http://troelschristensen.dk/wp-content/uploads/2021/04/tcjp20.v042.i03.jpeg; charset=UTF-8)
tandfonline.com har udgivet en rapport under søgningen “Teacher Education Mathematics”:
Thorvaldur Johnson. The Dominion Rust Research Laboratory, 1925-1957