Person
Erhardt, Carl L.
Catalogue
- Books
Morbidity in the municipal hospitals of the city of New York : report of an exploratory study in hospital morbidity reporting / Marta Fraenkel, Carl L. Erhardt.
Fraenkel, Marta, 1896-1976.Date: 1955- Books
Mortality and morbidity in the United States / Carl L. Erhardt and Joyce E. Berlin, editors.
Erhardt, Carl L.Date: 1974