00691nam a2200193Ia 4500003000900000008004100009020001800050040001600068080001200084100002700096245012000123260005200243300001000295650001800305650004100323942000700364999001500371952011100386IN-BaIIA211028s9999    xx            000 0 eng d  a0-87474-359-1  cIIA Library  a52bDEV  aDevorkin, D. H.915500 0aPractical astronomyblectures on time, place and spacecD H Devorkin                                                 aWashingtonbNational Air and Space Museumc1986  a109p.  aAstronomy980  aAstronomy and Astrophysics Thesaurus  cBK  c9228d9228  00104070aBANbBANcGENd0000-00-00l1o52/ DEVp10134r2024-12-05s2024-11-12w0000-00-00yBKG£ 13.74