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Third cambridge catalogue of radio sources

astronomical catalogue of celestial radio sources

Pronunciation
/θəːd ˈkeɪmbrɪʤ ˈkatəlɒɡ əv ˈreɪdɪəʊ sɔːsɪz/
/θərd ˈkeɪmbrɪʤ ˈkætəˌlɔg əv ˈreɪdioʊ ˈsɔrsəz/