Não informado. (1971). Landscape Design. Institute of Landscape Design.
Chicagoスタイル(17版)引用形式Não informado. Landscape Design. London: Institute of Landscape Design, 1971.
MLA(8版)引用形式Não informado. Landscape Design. Institute of Landscape Design, 1971.
警告: この引用は必ずしも正確ではありません.