Christy, V. A., & Paton, J. G. (2002). Foundations in singing: A basic textbook in vocal technique and song interpretation (7th ed.). McGraw-Hill.
Цитирование в стиле Чикаго (17-е изд.)Christy, Van Ambrose, и John Glenn Paton. Foundations in Singing: A Basic Textbook in Vocal Technique and Song Interpretation. 7th ed. Boston: McGraw-Hill, 2002.
Цитирование MLA (9-е изд.)Christy, Van Ambrose, и John Glenn Paton. Foundations in Singing: A Basic Textbook in Vocal Technique and Song Interpretation. 7th ed. McGraw-Hill, 2002.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.