TY - BOOK A1 - 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 TI - The future of heavy crude oils and tar sands first international conference, June 4-12, 1979, Edmonton, Alberta, Canada PB - كتابخانه مركزی و مركز اسناد دانشگاه صنعتی خواجه نصير الدين طوسى SN - 92008239 UR /book/92008239/The-future-of-heavy-crude-oils-and-tar-sands-first/ ER -