A chart showing the percentage of Panama Canal laborers with malaria over time, 1916.
- Citation Information
- Le Prince, Joseph Albert Augustin and Alexander Jeremiah Orenstein, “Mosquito control in Panama,” Digital Public Library of America, http://dp.la/item/4d60ee167f62b8f28e2e710879c6e615.
Courtesy of Cornell University Library via Biodiversity Heritage Library.
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For this source, consider:
- the author's point of view
- the author's purpose
- historical context