APA
Seller K., Wahl D., Wild A., Krauspe R., Schneider E. & Linke B. (20070926). Pullout strength of anterior spinal instrumentation: a product comparison of seven screws in calf vertebral bodies. : European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society.
Chicago
Seller Konrad, Wahl Dieter, Wild Alexander, Krauspe Rüdiger, Schneider Erich and Linke Berend. 20070926. Pullout strength of anterior spinal instrumentation: a product comparison of seven screws in calf vertebral bodies. : European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society.
Harvard
Seller K., Wahl D., Wild A., Krauspe R., Schneider E. and Linke B. (20070926). Pullout strength of anterior spinal instrumentation: a product comparison of seven screws in calf vertebral bodies. : European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society.
MLA
Seller Konrad, Wahl Dieter, Wild Alexander, Krauspe Rüdiger, Schneider Erich and Linke Berend. Pullout strength of anterior spinal instrumentation: a product comparison of seven screws in calf vertebral bodies. : European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society. 20070926.