Forrás: 150 Rounds for Singing and Teaching. Good Night, Stars Our Light. London's Burning. Margery, Serve Well the Black Sow.
Fordítás: 150 Rounds a Singing és tanítás. Edward Bolkavec. Voice kotta. Kórus kotta. A Choral, Voice. COLLECTION. BH Kodály. 104 oldal. Буси.