Surface coal mine safety rules for North Dakota mines
Subtitle: adopted November 18, 1971
By: issued by authority of Rudolph Iszler, mine inspector.
Publisher: [s.n.
Published: 1971
Place of publication: Bismarck, N. D
Language: eng
Number of pages: 50
Subjects: Coal mines and mining -- North Dakota -- Safety measures.; Strip mining -- North Dakota -- Safety measures.