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roy m longo
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The Discoverers
Roy M. Longo · Pitt Pub. Co.
317 sayfa · 1982
Mines and mineral resources / Mineral industries / Prospecting / Prospectors and Developers Association / History
Historical highlights of Canadian mining
Roy M. Longo · Pitt Pub. Co.
274 sayfa · 1973
Mineral industries / History / Mines and mineral resources / Biography
The Discoverers a 50-Year History of the Prospectors and Developers Association, Some Famous Prospectors and Their Discoveries
Hanula, Monica R.; Longo, Roy M. (Editors) · Pitt Publishing Company
Sayfa sayısı yok · 1982
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