Παραπομπή APA

(1962). List of public outdoor recreation areas 1960. Washington, D.C: Outdoor Recreation for America.

Παραπομπή Chicago Style

List of Public Outdoor Recreation Areas 1960. Washington, D.C: Outdoor Recreation for America, 1962.

Παραπομπή MLA

List of Public Outdoor Recreation Areas 1960. Washington, D.C: Outdoor Recreation for America, 1962.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.