Szövérffy, J. (1971). Iberian hymnody: Survey and problems. Classical Folia Editions.
Cita Chicago Style (17a ed.)Szövérffy, Joseph. Iberian Hymnody: Survey and Problems. [S.l.]: Classical Folia Editions, 1971.
Cita MLA (9a ed.)Szövérffy, Joseph. Iberian Hymnody: Survey and Problems. Classical Folia Editions, 1971.
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