Ferko, F., & Hildegard, S. (1996). Six Marian motets: For SATB chorus, unaccompanied. ECS Pub..
Chicago Style (17th ed.) CitationFerko, Frank, and Saint Hildegard. Six Marian Motets: For SATB Chorus, Unaccompanied. Boston: ECS Pub., 1996.
MLA (8th ed.) CitationFerko, Frank, and Saint Hildegard. Six Marian Motets: For SATB Chorus, Unaccompanied. ECS Pub., 1996.
Warning: These citations may not always be 100% accurate.