The question of unanimous singing in the Russian Church of the 17th century

Preobrazhensky, A.V.The question of unanimous singing in the Russian Church of the 17th century: historical information and written monuments.- [St. Petersburg]: OldP, 1904. -79 s .. - (Monuments of ancient writing and art; 155).-Bibliogr.In the text and subscription.Note..1. The people (collection).Electronic copy source: PBOriginal storage location: Samara OUNB