Não informado. (1961). Preservation News. National Trust for Historic Preservation.
Chicagoスタイル(17版)引用形式Não informado. Preservation News. Washington: National Trust for Historic Preservation, 1961.
MLA(8版)引用形式Não informado. Preservation News. National Trust for Historic Preservation, 1961.
警告: この引用は必ずしも正確ではありません.