RT Book
RT Kit
T1 An introduction to Gregorian chant: Richard L. Crocker
A2 Crocker, Richard L.
LA English
PP New Haven, Conn. u.a.
PB Yale Univ. Press
UL https://www.ixtheo.de/Record/1152983210
CN ML3082.C73 2000
SN 0300083106
K1 Chants Plain, Gregorian, etc : History and criticism