APA aipamena

Hr̃tl, R., Korge, A., & (Firm), A. I. (201). Minimally invasive spine surgery: Techniques, evidence, and controversies. Davos-Platz, Switzerland : AOSpine.

Chicago Style aipamena

Hr̃tl, Roger, Andreas Korge, and AOSpine International (Firm). Minimally Invasive Spine Surgery: Techniques, Evidence, and Controversies. Davos-Platz, Switzerland : AOSpine, 201.

MLA aipamena

Hr̃tl, Roger, et al. Minimally Invasive Spine Surgery: Techniques, Evidence, and Controversies. Davos-Platz, Switzerland : AOSpine, 201.