| March, 1994 | World Resources Institute in collaboration with the United Nations Environment Programe and the United Nations ... |
| March, 1994 | Charles V. Barber, Nels C. Johnson, and Emmy Hafild
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| February, 1994 | Paul Faeth, Cheryl Cort, and Robert Livernash |
| May, 1993 | Walter V. Reid, Sarah A. Laird, Carrie A. Meyer, Rodrigo Gámez, Ana Sittenfeld, Daniel H. Janzen, Michael A. ... |
| February, 1993 | Nels C. Johnson and Bruce Cabarle
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| January, 1993 | United States Agency for International Development and WRI |
| November, 1992 | Robert Repetto, Roger C. Dower, Robin Jenkins, and Jacqueline Geoghegan
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| October, 1992 | Carol H. Weiss, Ed.
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| August, 1992 | Roger C. Dower and Mary Beth Zimmerman
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| June, 1992 | James J. MacKenzie, Roger C. Dower and Donald D.T. Chen
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