Não informado. (1981). Progress in Obstetrics and Gynaecology. Churchill Livingstone.
Chicago Style (17th ed.) CitationNão informado. Progress in Obstetrics and Gynaecology. New York: Churchill Livingstone, 1981.
MLA (8th ed.) CitationNão informado. Progress in Obstetrics and Gynaecology. Churchill Livingstone, 1981.
Warning: These citations may not always be 100% accurate.