Anon. 2018. Anon. (2018). "Species Counterpoint"(PDF). Faculty of Fine Arts, University of Victoria, Canada. Archived from the original(PDF) on 23 October 2018. Retrieved 16 May 2020. (archive from 23 October 2018)
Anon. 2018. Anon. (2018). "Species Counterpoint"(PDF). Faculty of Fine Arts, University of Victoria, Canada. Archived from the original(PDF) on 23 October 2018. Retrieved 16 May 2020. (archive from 23 October 2018)
worldcat.org
Rahn 2000, p. 177. Rahn, John (2000). Music Inside Out: Going Too Far in Musical Essays. intro. and comment. by Benjamin Boretz. Amsterdam: G+B Arts International. ISBN90-5701-332-0. OCLC154331400.