1950 revised version of a paperback book printed by the US Government Printing Office. Prepared under the direction of the Los Alamos Scientific Laboratory. This copy appears to have been custom-bound in hardcover. Book is in very good vintage condition. Binding is intact. Interior pages clean and unmarked. Cover has bumped corners, a scratch on the front, rubbing on the edges and sunning to the spine edge. See pictures for more information on condition.

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