APA (7e ed.) Bronvermelding

Não informado. (1971). Landscape Design. Institute of Landscape Design.

Chicago (17e ed.) Bronvermelding

Não informado. Landscape Design. London: Institute of Landscape Design, 1971.

MLA (8e ed.) Bronvermelding

Não informado. Landscape Design. Institute of Landscape Design, 1971.

Let op: Deze citaties zijn niet altijd 100% accuraat.