APA
St.John Ambulance Association, . (1961). Nursing. Great Britain: S.J.A.A.
Chicago
St.John Ambulance Association, . 1961. Nursing. Great Britain: S.J.A.A.
Harvard
St.John Ambulance Association, . (1961). Nursing. Great Britain: S.J.A.A.
MLA
St.John Ambulance Association, . Nursing. Great Britain: S.J.A.A. 1961.