I am trying to find a copy (in good condition) of an out of print book entitled, "The Gamma Rays of the Radionuclides". The authors were Gerhard Erdtmann and Werner Soyka, and it was published in 1979 by Verlag Chemie. Its actually Volume 7 of a topical series of presentations on nuclear chemistry. If you can help, please reply directly to me at richard.latsch@nmcco.com