http://www.ep.tc/realist/126/07.html

https://books.google.com/books?id=d-YDAAAAMBAJ&pg=PA13

http://jfk.hood.edu/Collection/Weisberg%20Subject%20Index%20Files/O%20Disk/Oswald%20Lee%20Harvey/Drugs/Item%2001.pdf

http://jfk.hood.edu/Collection/White%20Materials/King%20Jr%20Martin%20Luther/MLK%20822.pdf