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2019
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2014
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Fluorspar industry -- Employees -- Diseases -- Newfoundland and Labrador -- St. Lawrence. / https://id.loc.gov/authorities/subjects/sh94008778 https://id.loc.gov/authorities/subjects/sh00005594 https://id.loc.gov/authorities/names/n79087995-781 : Martin, John R.,
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2012
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Fluorspar industry -- Employees -- Health and hygiene -- Newfoundland and Labrador -- St. Lawrence. / https://id.loc.gov/authorities/subjects/sh94008778 https://id.loc.gov/authorities/subjects/sh00005596 https://id.loc.gov/authorities/names/n79087995-781 : Martin, John R.,
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2012
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Fluorspar industry -- Health aspects -- Newfoundland and Labrador -- St. Lawrence. / https://id.loc.gov/authorities/subjects/sh94008778 https://id.loc.gov/authorities/subjects/sh00005598 https://id.loc.gov/authorities/names/n79087995-781 : Martin, John R.,
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2012
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Fluorspar industry -- Newfoundland and Labrador -- St. Lawrence -- History. / https://id.loc.gov/authorities/subjects/sh94008778 https://id.loc.gov/authorities/names/n79087995-781 https://id.loc.gov/authorities/subjects/sh99005024 : Martin, John R.,
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2012
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1
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7
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Fluorspar -- Kentucky -- Pictorial works. / https://id.loc.gov/authorities/subjects/sh85049445 https://id.loc.gov/authorities/names/n79018583-781 https://id.loc.gov/authorities/subjects/sh99001272 : Russell, Herbert K.,
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2019
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