Wolters, E. C., & Calne, D. B. (1989). Parkinson's disease.
Chicago Style CitationWolters, E C., i D B. Calne. Parkinson's Disease. 1989.
Cita MLAWolters, E C., i D B. Calne. Parkinson's Disease. 1989.
Atenció: Aquestes cites poden no estar 100% correctes.