APA (7th ed.) Citation

Mozart, W. A., Casals, P., Stern, I., & Primrose, W. Casals Festival at Perpignan. Columbia.

Chicago Style (17th ed.) Citation

Mozart, Wolfgang Amadeus, Pablo Casals, Isaac Stern, and William Primrose. Casals Festival at Perpignan. [S.l.]: Columbia.

MLA (9th ed.) Citation

Mozart, Wolfgang Amadeus, et al. Casals Festival at Perpignan. Columbia.