Nichols, Herbert L. <br/><br/>
Moving the earth 

 - 3th. ed. 
 - Connecticut :   North Castle Books,   1976. 
 - 21-134 p.;A-34; G-27; I-38 
<br/><br/>Land clearing;Surveys and measurements;Soil and mud;Cellars;Ditching and dewatering;Ponds;Landscaping and agricultural grading;Roads;Blasting and tunneling;Pit operation;Costs;The machines. Basic information;Revolving shovels;Conveyor machinery;Tractors and bulldozers;Tractors loaders;Scrapers;Trucks;Grading and compacting machinery;Compressors and drills;Miscellaneous equipment 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MOVIMIENTO DE TIERRA<br/>MAQUINARIAS<br/>SUELOS<br/>CAMINOS<br/>CARRETERAS<br/>TÚNELES<br/>COSTOS<br/>TRACTORES
<br/><br/><label>Universal Decimal Class. No.: </label>624.133