United States Office Of Scientific Research And Development. War metallurgy. Issued by National Defense Research Committee. Washington D.C.: Office of Scientific Research and Development, National Defense Research Committee, Division 18. p. 115. LCCN2009655232. Retrieved 2022-05-13.
lccn.loc.gov
United States Office Of Scientific Research And Development. War metallurgy. Issued by National Defense Research Committee. Washington D.C.: Office of Scientific Research and Development, National Defense Research Committee, Division 18. p. 115. LCCN2009655232. Retrieved 2022-05-13.