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Field testing the microminer--research continuous miner /

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Johnson, Bradley V.
Kaituhi rangatōpū: United States. Department of the Interior. Bureau of Mines
Ētahi atu kaituhi: Strebig, Kelly C., Krepela, Scott W.
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: [Washington, D.C.] : U.S. Dept. of the Interior, 1975.
Rangatū:Technical progress report (U.S. Departnent of the Interior. 89.
Ngā marau:
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