Preludes, fughettas, and fugues

MLA

Bach, Johann Sebastian and Glenn Gould. Preludes, fughettas, and fugues. [Place of publication not identified] : Sony Classical, [20--?]

APA

Bach, J. & Gould, G. (2000). Preludes, fughettas, and fugues. [Place of publication not identified] : Sony Classical.

Chicago

Bach, Johann Sebastian and Glenn Gould. Preludes, fughettas, and fugues. [Place of publication not identified] : Sony Classical, [20--?]