Chamberlain, G. (2006). British maternal mortality in the 19th and early 20th centuries. The Royal Society of Medicine.
Chicago Style aipamenaChamberlain, Geoffrey. British Maternal Mortality in the 19th and Early 20th Centuries. The Royal Society of Medicine, 2006.
MLA aipamenaChamberlain, Geoffrey. British Maternal Mortality in the 19th and Early 20th Centuries. The Royal Society of Medicine, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.