APA (7th ed.) Citation

Mozart, W. A., Moran, R. L., & Harler, A. (1990). Requiem, K. 626. [Mendelssohn Club?].

Chicago Style (17th ed.) Citation

Mozart, Wolfgang Amadeus, Robert Leonard Moran, and Alan Harler. Requiem, K. 626. [Philadelphia?]: [Mendelssohn Club?], 1990.

MLA (9th ed.) Citation

Mozart, Wolfgang Amadeus, et al. Requiem, K. 626. [Mendelssohn Club?], 1990.