Nichols, Herbert L.
Moving the earth the workbook of excavation - 2nd ed. - New Delhi Galgotia Publishing House 1962 - Various paging ill.
Excavation : Civil engineering
624.152 / NIC/1962
Moving the earth the workbook of excavation - 2nd ed. - New Delhi Galgotia Publishing House 1962 - Various paging ill.
Excavation : Civil engineering
624.152 / NIC/1962