Cita APA

Christy, V. A. 1., & Paton, J. G. (1990). Foundations in singing: A basic textbook in vocal technique and song interpretation (2. edition.). Dubuque, IA: WCB.

Citación estilo Chicago

Christy, Van Ambrose 1900-1990, y John Glenn Paton. Foundations in Singing: A Basic Textbook in Vocal Technique and Song Interpretation. 2. edition. Dubuque, IA: WCB, 1990.

Cita MLA

Christy, Van Ambrose 1900-1990, y John Glenn Paton. Foundations in Singing: A Basic Textbook in Vocal Technique and Song Interpretation. 2. edition. Dubuque, IA: WCB, 1990.