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
Untermann, Richard K. Grade easy; an introductory course in the principles and practices of grading and drainage. Developed by Richard K. Untermann. - McLean, Va., American Society of Landscape Architects Foundation, 1973. 119 p. ill. 28 cm. * Landscape architecture. Soil mechanics. Drainage.