1. Milestones in midwifery;Radcliffe,1967
2. The obstetrician's armamentarium;Hibbard,2000
3. Surgical instruments in Greek and roman times;Milne,1907
4. Obstetric forceps: its history and evolution;Das,1929
5. A History of Caesarean Birth: from maternal death to maternal choice;Baskett,2017