BRH/DEP (series). 72-3. Radiation safety in X-ray diffraction and spectroscopy, proceedings of conference sponsored by American Crystallographic Association; Delaware Valley Chapter, Health Physics Society; Delaware Valley Section, Society of Applied Spectroscopy held on Jan. 6-7, at University of Pennsylvania, Philadelphia, Pa.; [with lists of references]; edited by Thomas M. Moore, Walter E. Gundaker and John W. Thomas.

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