World Resources 1990-91. A report by the World Resources Institute in collaboration with UNEPand UNDP.

Sonraí bibleagrafaíochta
Údair chorparáideacha:	The World Resources Institute, The United Nations Environment Programme, The United Nations Development Programme
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	New York, New York Oxford University Press 1990
Ábhair:	Statistics. Resource management. World resources data tables. Condition and trends. Climate change.