Description
<strong>Nichols, H.L. and Day, D.A. (2005).</strong> <em>Moving the Earth: The Workbook of Excavation, 5<sup>th</sup> Ed.</em>, McGraw-Hill Companies, Inc., New York, New York.
<strong>Nichols, H.L. and Day, D.A. (2005).</strong> <em>Moving the Earth: The Workbook of Excavation, 5<sup>th</sup> Ed.</em>, McGraw-Hill Companies, Inc., New York, New York.