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Use of visual aids in the Morenci Branch safety program, Phelps Dodge Corp., Morenci, Ariz.

Safety plan at Ray Mines Division, Kennecott Copper Corp., Ray, Arizona

Published Year

• 1950-1959 (2)

Subject

• Copper mines and mining--Arizona (1)
• Employees--Training of--Audio-visual aids (1)

Author

• Look, Allen D. (2)
• Williams, M. L. (2) *

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