APA
P. Kerley, . (1940). The British Journal of Radiology. London: The British Institute of Radiology.
Chicago
P. Kerley, . 1940. The British Journal of Radiology. London: The British Institute of Radiology.
Harvard
P. Kerley, . (1940). The British Journal of Radiology. London: The British Institute of Radiology.
MLA
P. Kerley, . The British Journal of Radiology. London: The British Institute of Radiology. 1940.