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Books by E. D. Gardner

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Power-shovel and dragline placer mining
🇺🇸 United States
Power-shovel and dragline placer mining
By: E. D. Gardner
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Placer mining in the western United States: part 1. general information, hand-shoveling, and ground-sluicing
🇺🇸 United States
Placer mining in the western United States: part 1. general…
By: E. D. Gardner
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Mining methods and costs at the Eureka Standard mine
🇺🇸 United States
Mining methods and costs at the Eureka Standard mine
By: E. D. Gardner
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