Northern Virginia Regional Planning and Economic Development Commission. (1965). Open space project; a summary report. s.n.
Chicagoスタイル(17版)引用形式Northern Virginia Regional Planning and Economic Development Commission. Open Space Project; a Summary Report. Arlington, Va: s.n, 1965.
MLA(9版)引用形式Northern Virginia Regional Planning and Economic Development Commission. Open Space Project; a Summary Report. s.n, 1965.
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