NOR DENSON, T T. PREPARATION OF CO-ORDINATED PRECIPITATION, RUNOFF AND EVAPORATION MAPS - Geneva: WMO, 1968 - 20p, illus - WMO Operational Hydrology report no 6 . ENG Subjects--Topical Terms: P,Q,& E CO - ORDINATED MAPS.MAPS - P,Q,&E - CO-ORDINATED.