Παραπομπή σε μορφή APA (7η εκδ.)

Fraser, G. R., & Friedmann, A. I. (1967). The causes of blindness in childhood: A study of 776 children with severe visual handicaps. Johns Hopkins Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fraser, George Robert, και Allan Isadore Friedmann. The Causes of Blindness in Childhood: A Study of 776 Children with Severe Visual Handicaps. Baltimore: Johns Hopkins Press, 1967.

Παραπομπή σε μορφή MLA (9th εκδ.)

Fraser, George Robert, και Allan Isadore Friedmann. The Causes of Blindness in Childhood: A Study of 776 Children with Severe Visual Handicaps. Johns Hopkins Press, 1967.