00358nam a22001097a 4500008004100000040005500041080002200096245004900118260005400167650001200221653001500233230523b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 061.22(71)bNat  aScientific and technical societies of Canada  aWashington: bNational Research Council,   c1990  aScience  aTechnology