The Online Books Page

Books by John Bernard Umhau:

Books in the extended shelves:

• Umhau, John Bernard, 1898-: Consumption of primary and secondary tin in the United States in 1936 and 1937 (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by M. E. Trought and United States Bureau of Mines (page images at HathiTrust)
• Umhau, John Bernard, 1898-: Consumption of primary or virgin tin in the United States, 1927 (Washington, D.C. : United States, Department of Commerce, Bureau of Mines, 1928., 1928), also by United States Bureau of Mines (page images at HathiTrust)
• Umhau, John Bernard, 1898-: Consumption of primary tin in the United States during 1930 (U.S. Dept. of Commerce, Bureau of Mines, 1932), also by United States Bureau of Mines (page images at HathiTrust)
• Umhau, John Bernard, 1898-: Consumption of tin in the United States during 1928 (Washington, D.C. : United States, Department of Commerce, Bureau of Mines, 1929., 1929), also by United States Bureau of Mines (page images at HathiTrust)
• Umhau, John Bernard, 1898-: Primary and secondary tin in the United States (U.S. Dept. of the Interior, Bureau of Mines, 1936), also by Elmer Walter Pehrson and M. E. Trought (page images at HathiTrust)

Find more by John Bernard Umhau at your library, or elsewhere.