Jackson, R. L., & Harris, B. (1934). Study of Twenty Cases of Gastric and Duodenal Ulcer in the Negro.
Citação norma ChicagoJackson, Robert L., and Bernard Harris. Study of Twenty Cases of Gastric and Duodenal Ulcer in the Negro. 1934.
MLA CitationJackson, Robert L., and Bernard Harris. Study of Twenty Cases of Gastric and Duodenal Ulcer in the Negro. 1934.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.