APA-viite (7. p.)

Christiansen, M. L. (1977). Park planning handbook: Fundamentals of physical planning for parks and recreation areas. Wiley.

Chicago-viite (17. p.)

Christiansen, Monty L. Park Planning Handbook: Fundamentals of Physical Planning for Parks and Recreation Areas. New York: Wiley, 1977.

MLA-viite (9. p.)

Christiansen, Monty L. Park Planning Handbook: Fundamentals of Physical Planning for Parks and Recreation Areas. Wiley, 1977.

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