Παραπομπή σε μορφή APA (7η εκδ.)

Hatem, A. K. (2019). The state of Vitamin D in Iraqi Patients With Parkinson Disease. University of Baghdad/ Al-Kindy College of Medicine.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hatem, Aqeel Kareem. The State of Vitamin D in Iraqi Patients With Parkinson Disease. University of Baghdad/ Al-Kindy College of Medicine, 2019.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hatem, Aqeel Kareem. The State of Vitamin D in Iraqi Patients With Parkinson Disease. University of Baghdad/ Al-Kindy College of Medicine, 2019.