Não informado. (1897). Pennsylvania Medical Journal. Medical Society of the State of Pennsylvania.
Chicago-Zitierstil (17. Ausg.)Não informado. Pennsylvania Medical Journal. Harrisburg, Pa: Medical Society of the State of Pennsylvania, 1897.
MLA-Zitierstil (8. Ausg.)Não informado. Pennsylvania Medical Journal. Medical Society of the State of Pennsylvania, 1897.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.