APA
P. kerley, . (1939). The British Journal of Radiology. London: The British Institute of Radiology.
Chicago
P. kerley, . 1939. The British Journal of Radiology. London: The British Institute of Radiology.
Harvard
P. kerley, . (1939). 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. 1939.