Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
624.152 Nichols, Herbert L., 1908-, ((Herbert Lownds),) Moving the earth; the workbook of excavation. Illus. by Helen Schwagerman. - 2d ed.. - Greenwich, Conn, North Castle Books, 1962. 1 v. illus. 25 cm. * Earthwork. Earthmoving machinery. Excavation. Obras De Terra E Enrocamento