https://openlibrary.org/books/OL5291514M.opds Who speaks for earth? 2022-12-04T13:02:18Z Barbara Ward https://openlibrary.org/authors/OL8137447A/Barbara_Ward Maurice F. Strong https://openlibrary.org/authors/OL899036A/Maurice_F._Strong Norton New York 1973 173 p. [1st ed.] Seven lectures sponsored by the International Institute for Environmental Affairs during the United Nations Conference on the Human Environment held in Stockholm in June 1972. eng https://openlibrary.org/books/OL5291514M https://archive.org/details/whospeaksforeart00interich urn:ISBN:0393063925 72011726