Polderman, A. M. (1975). The transmission of intestinal schistosomiasis in Begemder Province, Ethiopia. Universitaire Pers Leiden.
Chicago Style aipamenaPolderman, A. M. The Transmission of Intestinal Schistosomiasis in Begemder Province, Ethiopia. [Leiden: Universitaire Pers Leiden, 1975.
MLA aipamenaPolderman, A. M. The Transmission of Intestinal Schistosomiasis in Begemder Province, Ethiopia. Universitaire Pers Leiden, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.