Bagchi, S. (2007). Polio eradication setback in India. Canadian Medical Association.
Chicago Style aipamenaBagchi, Sanjit. Polio Eradication Setback in India. Canadian Medical Association, 2007.
MLA aipamenaBagchi, Sanjit. Polio Eradication Setback in India. Canadian Medical Association, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.