APA
Philip J Steer, . (2006). Journal Of Obstetric & Gynaecology. U. S. A: Blackwell Publising.
Chicago
Philip J Steer, . 2006. Journal Of Obstetric & Gynaecology. U. S. A: Blackwell Publising.
Harvard
Philip J Steer, . (2006). Journal Of Obstetric & Gynaecology. U. S. A: Blackwell Publising.
MLA
Philip J Steer, . Journal Of Obstetric & Gynaecology. U. S. A: Blackwell Publising. 2006.