APA aipamena

Howland, R. H. (2014). Vagus Nerve Stimulation.

Chicago Style aipamena

Howland, Robert H. Vagus Nerve Stimulation. 2014.

MLA aipamena

Howland, Robert H. Vagus Nerve Stimulation. 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.