http://tags.library.upenn.edu/project/18686 PennTags Feed for /project/18686 PennTags Feed http://tags.library.upenn.edu/makerecord/project/18686 http://tags.library.upenn.edu/makerecord/project/18686 manuscript http://tags.library.upenn.edu/makerecord/voyager/18393 http://tags.library.upenn.edu/makerecord/voyager/18393 Historical and stylistic comparison of the graduals of Gregorian and Old-Roman chant. <div class="mlacite">Van Deusen, Nancy M., 1943- . <span style="text-decoration: underline">Historical and stylistic comparison of the graduals of Gregorian and Old-Roman chant. </span>[Bloomington, Ind.], 1972. <br />Call#: Music Microfilm 260</div><br /> <br />