York, D. (1976). Landscape and garden contracting: Methods, costing and estimating. Architectural Press.
Chicago-referens (17:e uppl.)York, David. Landscape and Garden Contracting: Methods, Costing and Estimating. London: Architectural Press, 1976.
MLA-referens (9:e uppl.)York, David. Landscape and Garden Contracting: Methods, Costing and Estimating. Architectural Press, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.