Publisher's Synopsis
Este libro es una guía práctica para los mineros que trabajan en la apertura de pozos y en el laboreo de las minas. El autor, John Richardson, ofrece consejos útiles sobre las herramientas, los equipos y las técnicas necesarios para realizar estas tareas con seguridad y eficacia. El libro es una referencia indispensable para cualquier persona interesada en la minería.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.
This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.
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