For a project I'm researching Salk's polio vaccine and I've been searching everywhere for primary documents but only found material from the Eisenhower Presidential Library but I still need more primary resources because it's only reports that comes from the government. I prefer to obtain documents from Salk himself.
The most important thing is to preserve the world we live in. Unless people understand and learn about our world, habitats, and animals, they won't understand that if we don't protect those habitats, we'll eventually destroy ourselves. — Jack Hanna
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