Columbia subject headings:
Conductus--History and criticism.
Conductus.
Monophonic chansons--500-1400--History and criticism.
Monophonic chansons--500-1400.
Harvard subject headings:
Conductus--History and criticism.
Conductus.
Monophonic chansons--500-1400--History and criticism.
Monophonic chansons--500-1400.
Princeton subject headings:
Conductus--History and criticism.
Conductus.
Monophonic chansons--500-1400--History and criticism.
Monophonic chansons--500-1400.