Não informado. Problems of Infectious and Parasitic Diseases. Medical Academy.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Problems of Infectious and Parasitic Diseases. Sofia: Medical Academy.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Problems of Infectious and Parasitic Diseases. Medical Academy.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.
