Soderlund, G. F. (1947). Direct Approach to Counterpoint in 16th Century Style: By Gustave Fredric Soderlund. Appleton-Century-Crofts, Inc.
Chicago-Zitierstil (17. Ausg.)Soderlund, Gustav Fredric. Direct Approach to Counterpoint in 16th Century Style: By Gustave Fredric Soderlund. New York: Appleton-Century-Crofts, Inc, 1947.
MLA-Zitierstil (9. Ausg.)Soderlund, Gustav Fredric. Direct Approach to Counterpoint in 16th Century Style: By Gustave Fredric Soderlund. Appleton-Century-Crofts, Inc, 1947.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.