Cita APA (7th ed.)

SpringerLink (Online service), Vadivelu, N., Urman, R. D., Hines, R. L., & Kunnumpurath, S. (2011). Essentials of pain management. Springer.

Cita Chicago (17th ed.)

SpringerLink (Online service), Nalini Vadivelu, Richard D. Urman, Roberta L. Hines, i Sreekumar Kunnumpurath. Essentials of Pain Management. New York: Springer, 2011.

Cita MLA (9th ed.)

SpringerLink (Online service), et al. Essentials of Pain Management. Springer, 2011.