Helm, E. E. (1989). Thematic catalogue of the works of Carl Philipp Emanuel Bach: E. Eugene Helm. Yale University Press.
Chicago-Zitierstil (17. Ausg.)Helm, E. Eugene. Thematic Catalogue of the Works of Carl Philipp Emanuel Bach: E. Eugene Helm. New Haven [u.a.]: Yale University Press, 1989.
MLA-Zitierstil (8. Ausg.)Helm, E. Eugene. Thematic Catalogue of the Works of Carl Philipp Emanuel Bach: E. Eugene Helm. Yale University Press, 1989.
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