Guggenheim, P., Bach, J. S., & Bach, J. S. (1992). The riddle of Bach's last fugue, contrapunctus XIX: Theologically considered with a conjectural completion. Mellen Research Univ. Press.
Chicago Style (17th ed.) CitationGuggenheim, Paul, Johann Sebastian Bach, and Johann Sebastian Bach. The Riddle of Bach's Last Fugue, Contrapunctus XIX: Theologically Considered with a Conjectural Completion. San Francisco: Mellen Research Univ. Press, 1992.
MLA (9th ed.) CitationGuggenheim, Paul, et al. The Riddle of Bach's Last Fugue, Contrapunctus XIX: Theologically Considered with a Conjectural Completion. Mellen Research Univ. Press, 1992.
Warning: These citations may not always be 100% accurate.