UNIMARC: Cartographic materials: Relief bathymetry - isolines k bathymetry - soundings e continuous tone shaded relief b contours a form lines f hachures d hypsometric tints - layer method c landforms j E.g. in the style of Lobeck, Raisz, Fenneman. not applicable x other methods in colour h E.g. in the style of Imhof. other methods of relief representation z pictorially i spot heights g Published