Simonds, J. O. (1978). Earthscape: A manual of environmental planning and design. Van Nostrand Reinhold.
Citazione stile Chigago Style (17a edizione)Simonds, John Ormsbee. Earthscape: A Manual of Environmental Planning and Design. New York: Van Nostrand Reinhold, 1978.
Citatione MLA (9a ed.)Simonds, John Ormsbee. Earthscape: A Manual of Environmental Planning and Design. Van Nostrand Reinhold, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.