Lerner, S. (1991). Earth summit conversations with architects of an ecologically sustainable future. Bookmark.
Lua i Stíl Chicago (17ú heag.)Lerner, Steve. Earth Summit Conversations with Architects of an Ecologically Sustainable Future. Bookmark, 1991.
Lua MLA (8ú heag.)Lerner, Steve. Earth Summit Conversations with Architects of an Ecologically Sustainable Future. Bookmark, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.