File:Etkin-classroom-late-1940s.jpg: Revision history

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25 August 2014

  • curprev 23:1223:12, 25 August 2014‎ Kevinpsiu talk contribs‎ 144 bytes +144‎ Bernard (Ben) Etkin, teaching a course in aeronautics in the late 1940s at the University of Toronto Faculty of Applied Science and Engineering.
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