Plainsong in the age of polyphony 
edited by Thomas Forrest Kelly 
 - Cambridge  Cambridge University Press  1992 
 - xi, 241 p. : ill., music ; 26 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780521106894 
<br/><br/><label>ISSN: </label>90025548 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Church music - Catholic Church - 15th century<br/>Church music - Catholic Church - 16th century<br/>Church music - Catholic Church - 500-1400<br/>Gregorian chants - History and criticism
<br/><br/><label>Dewey Class. No.: </label>782.32 KEL