Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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