Van Osselaer. Sign or Symptom? Leuven University Press.
Cita Chicago (17th ed.)Van Osselaer. Sign or Symptom? Leuven University Press.
Cita MLA (8th ed.)Van Osselaer. Sign or Symptom? Leuven University Press.
Atenció: Aquestes cites poden no estar 100% correctes.