American Society of Landscape Architects. (1932). Colonial gardens; the landscape architecture of George Washington's time. United States George Washington Bicentennial Commission.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Society of Landscape Architects. Colonial Gardens; the Landscape Architecture of George Washington's Time. Washington, D.C: United States George Washington Bicentennial Commission, 1932.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmerican Society of Landscape Architects. Colonial Gardens; the Landscape Architecture of George Washington's Time. United States George Washington Bicentennial Commission, 1932.
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