Citação norma APA

(1991). International journal of obstetric anesthesia: Official journal of the Obstetric Anaesthetists' Association. Churchill Livingstone.

Citação norma Chicago

International Journal of Obstetric Anesthesia: Official Journal of the Obstetric Anaesthetists' Association. Edinburgh [u.a.]: Churchill Livingstone, 1991.

Citação norma MLA

International Journal of Obstetric Anesthesia: Official Journal of the Obstetric Anaesthetists' Association. Churchill Livingstone, 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.