R.B. Duffield books & textbook
Hot Dry Rock Geothermal Energy Development Program (Annual Report, Fiscal Year 1979, LA-8280-HDR)
G.M. Cremer R.B. Duffield M.C. Smith M.G. Wilson
Los Alamos Scientific Laboratory, University of California /1980T Unknown Binding / 248 Pages
THE MUSICAL VERSION OF J.R.R. TOLKIEN'S THE HOBBIT
J.R.R.; Duffield, B.; Morris, J. Tolkien
Baker's Plays /1977T Paperback
