sponsored by UNITAR/UNDP Information Centre for Heavy Crude and Tar Sands ; in cooperation with Petroleos de Venezuela S.A., The United States Department of Energy, and Alberta Oil Sands Technology and Research Authority ; Joseph Barnea, scientific secretary ; R.F. Meyer, editor

Alberta Oil Sands Technology and Resarch Authority, [1988]

Available at 1 libraries

sponsored by the United Nations Institute for Training and Research , and Petroleos de Venezuela, S.A., in cooperation with the United States Department of Energy, and Alberta Oil Sands Technology and Research Authority ; R. F. Meyer, J. C. Wynn and J. C. Olson, editors

Mining Informational Services, McGraw-Hill c1984

076068757

Available at 1 libraries

sponsored by the United Nations Institute for Training and Research (UNITAR), Alberta (Canada) Oil Sands Technology and Research Authority (AOSTRA), and the United States Department of Energy, in cooperation with the Government of Venezuela ... [et al.] ; R. F. Meyer and C. T. Steele, editors, J. C. Olson, assistant editor

Mining Informational Services, McGraw-Hill c1981

Available at 5 libraries