References
- Asia-week Jan. 1980 . Pollution. China Sounds the Alarm .
- Asia-week May 1981 . China's Vast Vision in Green .
- Asia-week June 1981 . The Land, Food and People Equation .
- Dando W. 1980 . The Geography of Famine . London .
- Lacoste Y. 1970 . Underutvecklingens geografi . Stockholm .
- Munthe-Kaas , H. 1980 . Radiokåseri om Kina , Oslo : Norsk rikskringkasting .
- Smil V. 1979 . A shortage of forests . China Trade Report .
- Sun H. 1981 . Land resources and agricultural utilization in Xizang Autonomous Region, China . UNU-seminar and workshop , Sept. 1981 .
- Tschudi Aa. B. 1979 . Lessons to be learnt from the growth in Agricultural productivity in China . In Coppock 1979 (ed.) Agriculture and Food Supply in Developing Countries .
- Tuan Y.-F. 1970 . The World's Landscapes – China . London .
- UNU , 1981 . United Nation University-Newsletter , Volume 5 , Number 1 , January 1981 .
- Xinhua – Kinas nyhetsbyrå , 1979 . Pressemelding 14.juli 1979.