APA (7th ed.) Citation

Toch, E., & Gerhard, R. (1931). La Melodía. Labor.

Chicago Style (17th ed.) Citation

Toch, Ernst, and Robert Gerhard. La Melodía. Barcelona [etc.]: Labor, 1931.

MLA (9th ed.) Citation

Toch, Ernst, and Robert Gerhard. La Melodía. Labor, 1931.

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