This file is a lookup between 1981 wards and 1991 wards in England and Wales as at 1st April 1991. (File size: 3MB).Field Names - WD81CD, WD81NM, LAD81CD, LAD81NM, WD91CD,...

Low Invasion Fluids for Pressure Coring - Final Report; October 1981

Study of Multiphase Flow Useful to Understanding Scaleup of Coal Liquefaction Reactors 1981-84 Final Report