00444nam a2200145Ia 4500003000900000008004100009040001600050080001600066100002300082245011200105260003200217300001400249650001600263650001900279IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a681.38bSPI  aSpielman, Harold S 0aElectronics sources book for teachersbvol. 1cHarold S. Spielman                                            aNew YorkbHayden Bookc1965  avi, 513p.  aElectronics  aNASA Thesaurus