United States
Όμηρος
Scott O’Dell
Marc Reisner
Joanna Cole
Ralph Waldo Emerson
Ray K. Linsley
United States. General Accounting Office
Arundhati Roy
Elinor Ostrom
Unknown Author
Alexandre Koyré
Lynne Cherry
Warren Viessman
United States. General Accounting Office. Accounting and Information Management Division
Vandana Shiva
United States. Office of Electric Power Regulation.