APA-viite (7. p.)

Harrison, S. D., & O'Bryan, J. (2014). Teaching singing in the 21st century. Springer.

Chicago-viite (17. p.)

Harrison, Scott David, ja Jessica O'Bryan. Teaching Singing in the 21st Century. Dordrecht: Springer, 2014.

MLA-viite (9. p.)

Harrison, Scott David, ja Jessica O'Bryan. Teaching Singing in the 21st Century. Springer, 2014.