"Fugue, n." The Concise Oxford English Dictionary, eleventh edition, revised, ed. Catherine Soanes and Angus Stevenson (Oxford and New York: Oxford University Press, 2006). "Oxford Reference Online, subscription access". Retrieved 16 March 2007.[permanent dead link]
"Fugal, adj." The Concise Oxford English Dictionary, eleventh edition, revised, ed. Catherine Soanes and Angus Stevenson (Oxford and New York: Oxford University Press, 2006). "Oxford Reference Online, subscription access". Retrieved 16 March 2007.[permanent dead link]
"Invertible Counterpoint" The Oxford Companion to Music, ed. Alison Latham (Oxford and New York: Oxford University Press, 2002) Latham, Alison (2011). Oxford Reference Online, subscription access. Oxford University Press. ISBN978-0-19-957903-7. Retrieved 16 March 2007.
Gedalge 1964, p. 7 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Gedalge 1964, p. 70 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Gedalge 1964, p. 12 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Verrall 1966, p. 12 Verrall, John W. (1966). Fugue and Invention in Theory and Practice. Palo Alto: Pacific Books. OCLC1173554.
Gedalge 1964, p. 59 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Gedalge 1964, p. 61 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Gedalge 1964, pp. 71–72 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Verrall 1966, p. 33 Verrall, John W. (1966). Fugue and Invention in Theory and Practice. Palo Alto: Pacific Books. OCLC1173554.
Gedalge 1964, p. 108 Gedalge, André (1964) [1901]. Traité de la fugue [Treatise on Fugue]. trans. A. Levin. Mattapan: Gamut Music Company. OCLC917101.
Verrall 1966, p. 77 Verrall, John W. (1966). Fugue and Invention in Theory and Practice. Palo Alto: Pacific Books. OCLC1173554.
Walker 2000, p. 7 Walker, Paul Mark (2000). Theories of Fugue from the Age of Josquin to the Age of Bach. Eastman studies in music. Vol. 13. Rochester: University of Rochester Press. ISBN9781580461504. OCLC56634238.
Walker 2000, pp. 9–10 Walker, Paul Mark (2000). Theories of Fugue from the Age of Josquin to the Age of Bach. Eastman studies in music. Vol. 13. Rochester: University of Rochester Press. ISBN9781580461504. OCLC56634238.
Walker 2000, p. 165 Walker, Paul Mark (2000). Theories of Fugue from the Age of Josquin to the Age of Bach. Eastman studies in music. Vol. 13. Rochester: University of Rochester Press. ISBN9781580461504. OCLC56634238.
Walker 2000, p. 316 Walker, Paul Mark (2000). Theories of Fugue from the Age of Josquin to the Age of Bach. Eastman studies in music. Vol. 13. Rochester: University of Rochester Press. ISBN9781580461504. OCLC56634238.
Walker 2000, p. 317 Walker, Paul Mark (2000). Theories of Fugue from the Age of Josquin to the Age of Bach. Eastman studies in music. Vol. 13. Rochester: University of Rochester Press. ISBN9781580461504. OCLC56634238.
Walker 2000, p. 2 Walker, Paul Mark (2000). Theories of Fugue from the Age of Josquin to the Age of Bach. Eastman studies in music. Vol. 13. Rochester: University of Rochester Press. ISBN9781580461504. OCLC56634238.
Graves 1962, p. 64 Graves, William L. Jr. (1962). Twentieth Century Fugue. Washington, D.C.: The Catholic University of America Press. OCLC480340.
"Fugue [Fr. fugue; Ger. Fuge; Lat., It., Sp., fuga]." The Harvard Dictionary of Music (Cambridge: Harvard University Press, 2003), "credo Reference". Retrieved 6 May 2008.[permanent dead link]