Showing 1 - 2 results of 2 for search 'Armstrong, Henry Edward, 1848-1937', čas poizvedbe: 0.01s Refine Results
  1. 1
    H. E. Armstrong and science education : selections from The teaching of scientific method and other papers on education /
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  2. 2
    H.E. Armstrong and the teaching of science, 1880-1930 /
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