00439nam a2200145Ia 4500003000900000008004100009040001600050080001600066100002000082245010600102260003700208300001500245650001400260650001900274IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a681.14bRIC  aRichards, R. K. 0aDigital computer components and circuitscR. K. Richards                                               aPrincetonbD. Van Nostrandc1965  avii, 511p.  aComputers  aNASA Thesaurus