Walker, GrahamOwen, Howard D.2005-07-192005-07-19197882481053http://hdl.handle.net/1880/15445Bibliography: p. 102.xii, 125 leaves : ill. ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.TN 345 O92 1978 MicroficheMining machineryStrip miningmaster thesis10.11575/PRISM/23012TN 345 O92 1978 Microfiche