00651nam a2200181Ia 4500003000900000008004100009020001800050040001600068080002100084110002100105245013500126260003700261300002300298490006300321650004100384650002100425700002300446IN-BaIIA211028s9999    xx            000 0 eng d  a0-7923-0550-7  cIIA Library  a063:52bIAU-T20B  aGeneral Assembly 0aProceedings of the twentieth general assembly, Baltimore, 1988cedited by  Derek McNally                                            aDordrechtbKluwer Academicc1990  a[various pagings.]  aTransactions of the International Astronomical Union; v. X  aAstronomy and Astrophysics Thesaurus  aIAU Transactions  aMcNally, Derek ed.