APA

Porter R. [., . (1981). Trauma and after. London: Pitman Medical.

Chicago

Porter Ruth [ed.], . 1981. Trauma and after. London: Pitman Medical.

Harvard

Porter R. [., . (1981). Trauma and after. London: Pitman Medical.

MLA

Porter Ruth [ed.], . Trauma and after. London: Pitman Medical. 1981.