Organic geochemistry research, phase 2 : China : project findings and recommendations.
ImprintParis : Unesco : United Nations Development Programme, 1988.
i, 26 p. : ill., tables.
Appendix also in Chinese. "Report prepared for the Government of the People's Republic of China by the United Nations Educational, Scientific and Cultural Organization (Unesco) acting as Executing Agency for the United Nations Development Programme (UNDP)". Project document symbol UNDP/CPR/84/005. Terminal report.