Levin, R. D., & Sight singing and ear training through literature. (1988). Sight singing & ear training through literature. Englewood Cliffs, N.J: Prentice Hall.
Chicago-стиль цитированияLevin, Robert D., và Sight singing and ear training through literature. Sight Singing & Ear Training Through Literature. Englewood Cliffs, N.J: Prentice Hall, 1988.
MLA-цитированиеLevin, Robert D., và Sight singing and ear training through literature. Sight Singing & Ear Training Through Literature. Englewood Cliffs, N.J: Prentice Hall, 1988.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.