Source: PL-WRu I F 413 Cistercian Gradual (Silesia)Folio: 041vSequence: 5Feast: Fer. 4 Hebd. 4 Quad.Office: MASSGenre: GrPosition: 2Cantus ID: g01217.1Mode: 1Full text: Beata gens cujus est dominus deus ejus populus quem elegit dominus