APA (7th ed.) Citation

Ravel, M., Boston Conservatory of Music. Opera Theatre, & Moriarty, J. The opera theater of the Boston & New England conservatories presents L: The spanish hour.

Chicago Style (17th ed.) Citation

Ravel, Maurice, Boston Conservatory of Music. Opera Theatre, and John Moriarty. The Opera Theater of the Boston & New England Conservatories Presents L: The Spanish Hour.

MLA (9th ed.) Citation

Ravel, Maurice, et al. The Opera Theater of the Boston & New England Conservatories Presents L: The Spanish Hour.

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