CIRA 1961 COSPAR international reference atmosphere 1961 : report of the preparatory group for an International Reference Atmosphere, accepted at the COSPAR meeting in Florence, April, 1961 - Amsterdam North-Holland 1961 - xii+177p. figs; tables Subjects--Topical Terms: AtmosphereCiraCospar Universal Decimal Class. No.: 551.51 / KAL