APA (7th ed.) Citation

BEHNKE, E. Voice training exercises In six books for soprano, mezzo-soprano, contralto, tenor, baritone and bas. Oliver Ditson.

Chicago Style (17th ed.) Citation

BEHNKE, Emil. Voice Training Exercises In Six Books for Soprano, Mezzo-soprano, Contralto, Tenor, Baritone and Bas. Oliver Ditson.

MLA (8th ed.) Citation

BEHNKE, Emil. Voice Training Exercises In Six Books for Soprano, Mezzo-soprano, Contralto, Tenor, Baritone and Bas. Oliver Ditson.

Warning: These citations may not always be 100% accurate.