TY  - BOOK
ED  - United Nations Institute for Training and Research (UNITAR)
ED  - Petróleos de Venezuela S.A. (PDVSA)
TI  - International conference on heavy crude and tar sands: 2
U1  - 665.5 
PY  - 1982///
CY  - Caracas
PB  - UNITAR, PDVSA
KW  - Petróleo
KW  - Gas Natural
KW  - Planificación
KW  - Medio Ambiente
KW  - Congresos y Conferencias
N1  - 06436; Definitions and clasifications. Cooperation in the development of heavy crude and tar sands. Goverment policy. Medium and long - term planning and marketing including international trade. Occurrences. Biochemistry. Exploration and resources evaluation. Chemistry and geochemistry. Geology. Enviromental aspects
ER  -