APA (7th ed.) Citation

Ashkenazy, V., Nupen, C., & Chopin, F. (1972). Two nocturnes opus 15 nos. 1 & 2. Allegro Films.

Chicago Style (17th ed.) Citation

Ashkenazy, Vladimir, Christopher Nupen, and Frédéric Chopin. Two Nocturnes Opus 15 Nos. 1 & 2. Guildford, England: Allegro Films, 1972.

MLA (9th ed.) Citation

Ashkenazy, Vladimir, et al. Two Nocturnes Opus 15 Nos. 1 & 2. Allegro Films, 1972.