Washington DC: National Academy of Sciences - National Research Council 1959. First Edition. ix, 155 pages. 8 1/2 x 11 inches. Printed two-tone blue wrappers. Minor creasing and sun browning. Clean internally. Nuclear Science Series Report Number 24. National Academy of Sciences - National Research Council publication 573. Very Good. Wraps. 
Essentially the verbatim transcript of an informal conference on the matter. Early for this subject.