00515nam a2200133Ia 4500020001800000082002100018245014300039260004400182300001100226504000800237650005400245650005200299700003000351  a3-88053-010-6  aRR 025.3025 INT; 0aInternational ISBN publishers' directory: numerical ISBN directory, alphabetical directory classification by countries, alphabetical index  aBerlinbInternational ISBN Agencyc1980  a1433p.  aref  aInternational standard book numbers - Directories  aPublisher's standard book numbers - Directories  aInternational ISBN Agency