Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.