ABSTRACT

Underwater Training Centre University College of Swansea University College of Wales University Microfilms International University of Aston in Birmingham University of Bath Press University of Birmingham University of Bradford University of Bristol University of Cambridge University of Central England in Birmingham University of Edinburgh University of Glasgow University of Liverpool University of London

- Queen Mary College - University College London

University of Manchester - Institute of Science & Technology (UMIST)

University of Newcastle upon Tyne - Decompression Sickness Central Register

University of Northumbria at Newcastle University of Plymouth University of Salford University of Southampton University of Strathclyde

- Dept of Shipbuilding & Naval Arch University of Sunderland University of Wales Inst of Science &

Technology VCH Publishers (UK) Ltd Vikoma Ltd Vortex Warburg Securities Warren Spring Laboratory Warsash Nautical Bookshop Water Research Centre Wessex Institute of Technology Wharton Econometric Forecasting Associates

Group (WEFA) Whittles Publishing Services Wilson (H W) Company Witherby & Co Ltd Wood Group World Microfilm Publications Ltd Yard Ltd

Ministry of Petroleum & Mineral Resources

Ministry of Industry

Ministere des Mines et des Hydrocarbures

Ministry of Petroleum

National Iranian Petrochemical Company

Iraq National Oil Company

Ministry of Energy & Infrastructure

KUWAIT Kuwait Petroleum Corporation Ministry of Oil

Ministry of Oil

Ministry of Petroleum & Mineral Resources

NIGERIA Federal Ministry of Petroleum & Enbergy Nigerian National Petroleum Corporation