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1
Mineral Resources of the United States, 1931. O.E. Kiessling, chief economist, Division of Mineral Statistics. Part II. -- Nonmetals.
Published 1933Online Access
Government Document Electronic eBook -
2
Minerals Yearbook, 1932-33, [by] O.E. Kiessling, chief economist, Division of Mineral Statistics.
Published 1933Online Access
Government Document Electronic eBook -
3
Mineral Resources of the United States, 1930, [by] O.E. Kiessling, chief economist, Division of Mineral Statistics. Part II. -- Nonmetals.
Published 1932Online Access
Government Document Electronic eBook -
4
Minerals yearbook, 1938. Compiled under the supervision of H. Herbert Hughes, Economics and Statistics Branch.
Published 1937Online Access
Government Document Electronic eBook -
5
Minerals Yearbook, 1937. Compiled under the supervision of H.H. Hughes, Economics and Statistics Branch.
Published 1937Online Access
Government Document Electronic eBook