00540nam a2200157Ia 4500003000900000008004100009020001800050040001600068080001700084100002000101245018300121260003700304300001500341650001400356650001200370IN-BaIIA211028s9999    xx            000 0 eng d  a0-7923-2980-5  cIIA Library  a52(061)bBLA  aBlaauw, Adriaan 0aHistory of International Astronomical Unionbthe birth and first half-century of the International Astronomical UnioncAdriaan Blaauw                                               aDordrechtbKluwer Academicc1994  axix, 296p.  aAstronomy  aHistory