Christiansen, M. L. (1985). Park planning handbook: Fundamentals of physical planning for parks and recreation areas. MacMillan Publishing Company.
Citazione stile Chigago Style (17a edizione)Christiansen, Monty L. Park Planning Handbook: Fundamentals of Physical Planning for Parks and Recreation Areas. New York, N.Y: MacMillan Publishing Company, 1985.
Citatione MLA (9a ed.)Christiansen, Monty L. Park Planning Handbook: Fundamentals of Physical Planning for Parks and Recreation Areas. MacMillan Publishing Company, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.