Forrás: Winter Solstice. A Cappella sheet music. Winter Solstice composed by Charles Galetar. For Choral. SATB a cappella. 8 pages.
Fordítás: Téli napforduló. A Cappella kotta. A Choral. Shawnee Press. Choral, A Cappella, verseny. Festival Music, Seasonal. 8 oldal.