00569nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001700084245012700101260004000228300001800268650001400286650001700300650001700317700006500334IN-BaIIA211028s9999    xx            000 0 eng d  a0-333-75088-8  cIIA Library  a(031)52bMUR 0aEncyclopedia of astronomy and astrophysicsbvol. 2, Gem - Ncedited by P. Murdin                                            aBristolbInstitute of Physicsc2001  a965 - 1898 p.  aastronomy  aastrophysics  aencyclopedia  aMurdin, P., ed.