Lerner, S. (1991). Earth summit conversations with architects of an ecologically sustainable future. Bookmark.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLerner, Steve. Earth Summit Conversations with Architects of an Ecologically Sustainable Future. Bookmark, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLerner, Steve. Earth Summit Conversations with Architects of an Ecologically Sustainable Future. Bookmark, 1991.
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