APA (7th ed.) Citation

Ruff, A. E. (1926). Vocal fundamentals for speech and song: A brief treatise on the vocal muscular system. A. E. Ruff.

Chicago Style (17th ed.) Citation

Ruff, Albert Edward. Vocal Fundamentals for Speech and Song: A Brief Treatise on the Vocal Muscular System. Los Angeles, Cal: A. E. Ruff, 1926.

MLA (9th ed.) Citation

Ruff, Albert Edward. Vocal Fundamentals for Speech and Song: A Brief Treatise on the Vocal Muscular System. A. E. Ruff, 1926.