APA aipamena

Zetterberg, H., Jonsson, M., Rasulzada, A., Popa, C., Styrud, E., Hietala, M. A., . . . Blennow, K. (2007). No neurochemical evidence for brain injury caused by heading in soccer. BMJ Group.

Chicago Style aipamena

Zetterberg, Henrik, Michael Jonsson, Abdullah Rasulzada, Cornel Popa, Ewa Styrud, Max Albert Hietala, Lars Rosengren, Anders Wallin, and Kaj Blennow. No Neurochemical Evidence for Brain Injury Caused By Heading in Soccer. BMJ Group, 2007.

MLA aipamena

Zetterberg, Henrik, et al. No Neurochemical Evidence for Brain Injury Caused By Heading in Soccer. BMJ Group, 2007.