00871nam a2200205Ia 4500003000900000008004100009040001600050080002200066111010400088245019000192260005000382300002300432650002100455650001900476650001500495700003100510942000700541999001500548952010200563IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a529.2(082.1)bTIM  aInternational Symposium on Time and FrequencycNational Physical Laboratoryd1981 Feb. 10-12912043 0aTime and FrequencybJournal of the institution of electonics and telecommunication engineers; vol. 27, no. 10, October 1981cedited by Ranjit Singh                                        aNew DelhibNational Physical Laboratoryc1981  a[various pagings.]  aFrequency912044  aNASA Thesaurus  aTime92741  aSingh, Ranjit., ed.912045  cBK  c7040d7040  00104070aBANbBANcGENd1982-03-31l0o529.2(082.1)/ TIMp7818r2021-11-05w1982-03-31yBKG30