TY  - GEN
AU  - Skinner,B.F.
TI  - B. F. Skinner papers,
KW  - Einstein, Albert,
KW  - Norbutt, John
KW  - National Academy of Sciences (U.S.)
KW  - First day covers (Philately)
KW  - Science
KW  - 20th century
KW  - Psychologists
KW  - itoamc
N1  - Open to research
N2  - TLS (1979 March 15) from Skinner to John Norbutt stating that Albert Einstein made the greatest contributions to science in the twentieth century; first day cover (1963 October 14), autographed by Skinner, honoring the National Academy of Sciences; and autographed photograph of Skinner
ER  -