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Economic benefits of systematic roof bolting in Ziegler No. 3 Mine, Bell & Zoller Coal & Mining Co., Williamson County, Ill.

Name: Economic benefits of systematic roof bolting in Ziegler No. 3 Mine, Bell & Zoller Coal & Mining Co., Williamson County, Ill.
Author: L. W. Kelly
ISBN: 978B003HKQQF9

AuthorL. W. Kelly

PublisherUniversity of Michigan Library

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Book Details

Author(s)L. W. Kelly

PublisherUniversity of Michigan Library

ISBN / ASINB003HKQQFS

ISBN-13978B003HKQQF9

MarketplaceFrance 🇫🇷