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Coal+mines+and+mining and Coal+miners--Personal+narratives by Tapoya%2C+John and Bisulco%2C+Alex and Bisulco%2C+Alex and Tapoya%2C+John and Pastorelli%2C+Abe of Aguilar+%28Las+Animas%2C+Colorado%2C+United+States%2C+North+America%29+%28populated+place%29 from 1978-08-20 and 1913%2F1978 and 1913%2F1978
- UC Boulder