00317nam a22001097a 4500008004100000082001800041100002200059245005900081260002400140300001000164650003300174200312b           ||||| |||| 00| 0 eng d00a507.12bS8361  aStephenson, J. P.10aSuggestions for science teachers in devasted countries  aParisbUNESCOc1951  a88 p. 0aScience - Study and Teaching