Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Harrison, S. D., & O'Bryan, J. (2014). Teaching Singing in the 21st Century. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Scott D. Harrison, και Jessica O'Bryan. Teaching Singing in the 21st Century. Dordrecht: Springer Netherlands : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Teaching Singing in the 21st Century. Springer Netherlands : Imprint: Springer, 2014.