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1
Minerals Yearbook, 1935. Compiled under the supervision of O.E. Kiessling, chief economist, Mineral Resources and Economics Division.
Published 1936Online Access
Government Document Electronic eBook -
2
Minerals Yearbook, 1934, [by] O.E. Kiessling, chief economist, Division of Mineral Statistics.
Published 1935Online Access
Government Document Electronic eBook -
3
Minerals Yearbook, 1932-33, [by] O.E. Kiessling, chief economist, Division of Mineral Statistics.
Published 1933Online Access
Government Document Electronic eBook -
4
Minerals Yearbook, 1936. Compiled under the supervision of O.E. Kiessling and H.H. Hughes, Mineral Resources and Economics Division.
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