-
1
World Resources 1990-91. A report by the World Resources Institute in collaboration with UNEPand UNDP.
Foilsithe / Cruthaithe 1990LEABHAR -
2
World resources 1987 an assessment of the resource base that support the global economy, eight data table for 146 countries.
Foilsithe / Cruthaithe 1987LEABHAR