00361nam a22001217a 4500008004100000040005500041080001500096245003900111260003200150300001600182650001500198653002600213230418b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a371.66bN1  aSatellite technology in education   aLondon: bRoutledge, c1991  axvi, 221p.   aEducation   aSatellite technology