00763nam a2200205Ia 4500003000900000008004100009020001800050040001600068080001200084110004800096245012100144260005100265300001600316650001800332650004100350700003100391942000700422999001500429952011300444IN-BaIIA211028s9999    xx            000 0 eng d  a0-309-02029-8  cIIA Library  a52bNAS  aUnited States. National Academy of Sciences 0aAstronomy and astrophysics for the 1970'sbvol. 1, report of the astronomy survey committeecedited by Harvey Brooks  aWashingtonbNational Academy of Sciencesc1972  axvii, 136p.  aAstronomy980  aAstronomy and astrophysics thesaurus  aBrooks, Harvey., ed.97608  cBK  c4335d4335  00104070aBANbBANcGENd1973-11-20g43.15l0o52/ NASp4840r2021-11-05v43.15w1973-11-20yBKGRs. 43.15