Buch(gedruckt)#11975
Profile of North Dakota's coal mine and electric power plant operating work force
In: Agricultural economics report no. 100
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In: Agricultural economics report no. 100
In: North central journal of agricultural economics: NCJAE, Band 2, Heft 1, S. 17
In: North central journal of agricultural economics: NCJAE, Band 8, Heft 2, S. 269