Mock-up studies of the high temperature file.
M.T. Walling, US Atomic Energy Commission (AEC) · 1948
f :d.cuiuent contains defence of U.e Unite< I spions^e .ctiU, or the r eve1st unfeuthoriatifr^* is isnoation affecting the mition&l within the ineanir.g of t}.e and 32Its transmission contents in any manner to an prohibited by law.