00521nam a2200145Ia 4500003000900000008004100009040001600050080001500066110003700081245014200118260005000260300000900310650004100319650001500360IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a550.3bCZE  aCzechoslovak Academy of Sciences 0aInternational geophysical year the co-operation in Czechoslovakia 1957-1959cCzechoslovak Academy of Sciences                              bPrahabCeskoslovenske Akademie ved Prahac1960  a270p  aAstronomy and Astrophysics Thesaurus  aGeophysics