1. Slate in the United States;Dale;US Geological Survey Bulletin No, 586,1914
2. The colored slates of Vermont and New York;Larrabee;Eng Mining J,1939
3. Respiratory tuberculosis and pneumoconiosis in slate workers;Jones;Br J Dis Chest,1967
4. Respiratory function in slate workers;McDermott;Bull Eur Physiopathol Respir,1978
5. Silicosis in slate quarry miners;Davies;Tubercle,1939