WRI paper
World Resources Institute
WRI papers
John Elkington, Jonathan Shopley
World Resources Institute 1989 WRI paper
所蔵館7館
Gareth Porter with Delfin J. Ganapin, Jr
World Resources Institute 1988 WRI paper # 4
所蔵館2館
World Resources Institute 1988 WRI paper #3
pbk.
World Resources Institute, 1986 WRI paper # 2
所蔵館6館
Montague Yudelman
World Resources Institute, 1985 WRI paper # 1
所蔵館4館