World energy resources, 1985-2020. the full reports to the Conservation Commission of the World Energy Conference.
Auer, P. L.Unconventional energy resources.
Armstrong, Ellis L.Hydraulic resources.
World Energy Conference.Conservation Commission.
Guildford : IPC Science and Technology Press for the W.E.C.,
1978.
In 5 vols
Spine title: Renewable energy resources
Contents: Unconventional energy resources / by P.L. Auer et al. - Hydraulic resources / by Ellis L. Armstrong
ISBN 0-902852-86-8 Set of 5 vols : £50.00
Power resources.