APA (7th ed.) Citation
Hedley, O. (1941). Heart Disease in Philadelphia cardiac clinics: A composite picture of the etiological types in the clinics of 15 hospitals.
Chicago Style (17th ed.) Citation
Hedley, O.F. Heart Disease in Philadelphia Cardiac Clinics: A Composite Picture of the Etiological Types in the Clinics of 15 Hospitals. 1941.
MLA (9th ed.) Citation
Hedley, O.F. Heart Disease in Philadelphia Cardiac Clinics: A Composite Picture of the Etiological Types in the Clinics of 15 Hospitals. 1941.
Warning: These citations may not always be 100% accurate.