Pregill, P., & Volkman, N. (1999). Landscapes in history: Design and planning in the Eastern and Western traditions (2nd ed.). Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPregill, Philip, और Nancy Volkman. Landscapes in History: Design and Planning in the Eastern and Western Traditions. 2nd ed. New York: Wiley, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPregill, Philip, और Nancy Volkman. Landscapes in History: Design and Planning in the Eastern and Western Traditions. 2nd ed. Wiley, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.