Cita APA

Klein, J. J., & Schjeide, O. A. (1972). Singing technique: How to avoid vocal trouble. Tustin, California: National Music Publishers.

Citación estilo Chicago

Klein, Joseph J., y Ole Arne Schjeide. Singing Technique: How to Avoid Vocal Trouble. Tustin, California: National Music Publishers, 1972.

Cita MLA

Klein, Joseph J., y Ole Arne Schjeide. Singing Technique: How to Avoid Vocal Trouble. Tustin, California: National Music Publishers, 1972.