TY  - SER
AU  - Hiley,David
TI  - Gregorian and Old roman Eighth-Mode Tracts:  A Case Study in the Transmission of Western Chant.  
PY  - 2005///
CY  - Oxford
PB  - Oxford University Press
N2  - RESUMEN: By Emma Hornby. (Ashgate, Aldershot 2002)
ER  -