Weiss, A. S. (1998). Unnatural horizons: Paradox and contradiction in landscape architecture. Princeton Architectural Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWeiss, Allen S. Unnatural Horizons: Paradox and Contradiction in Landscape Architecture. New York: Princeton Architectural Press, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWeiss, Allen S. Unnatural Horizons: Paradox and Contradiction in Landscape Architecture. Princeton Architectural Press, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.