APA
John M. Grant, . (2002). British Journal of Obstetrics & Gynaecology. New York: Elsevier Science Ltd.
Chicago
John M. Grant, . 2002. British Journal of Obstetrics & Gynaecology. New York: Elsevier Science Ltd.
Harvard
John M. Grant, . (2002). British Journal of Obstetrics & Gynaecology. New York: Elsevier Science Ltd.
MLA
John M. Grant, . British Journal of Obstetrics & Gynaecology. New York: Elsevier Science Ltd. 2002.