American Society of Landscape Architects. (1932). Colonial gardens; the landscape architecture of George Washington's time. United States George Washington Bicentennial Commission.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American Society of Landscape Architects. Colonial Gardens; the Landscape Architecture of George Washington's Time. Washington, D.C: United States George Washington Bicentennial Commission, 1932.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)American Society of Landscape Architects. Colonial Gardens; the Landscape Architecture of George Washington's Time. United States George Washington Bicentennial Commission, 1932.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.