APA
Ring P., . (1964). The Care of the injured. E. & S. Livingstone Ltd., Edinburgh: .
Chicago
Ring P.A, . 1964. The Care of the injured. E. & S. Livingstone Ltd., Edinburgh: .
Harvard
Ring P., . (1964). The Care of the injured. E. & S. Livingstone Ltd., Edinburgh: .
MLA
Ring P.A, . The Care of the injured. E. & S. Livingstone Ltd., Edinburgh: . 1964.