APA citiranje

Petzold, G., Einhaupl, K., & Valdueza, J. (2003). Persistent bitter taste as an initial symptom of amyotrophic lateral sclerosis. BMJ Group.

Citação norma Chicago

Petzold, G., K. Einhaupl, and J. Valdueza. Persistent Bitter Taste As an Initial Symptom of Amyotrophic Lateral Sclerosis. BMJ Group, 2003.

MLA citiranje

Petzold, G., K. Einhaupl, and J. Valdueza. Persistent Bitter Taste As an Initial Symptom of Amyotrophic Lateral Sclerosis. BMJ Group, 2003.