Παραπομπή APA

(1962). Federal agencies and outdoor recreation. Washington, D.C: Outdoor Recreation for America.

Παραπομπή Chicago Style

Federal Agencies and Outdoor Recreation. Washington, D.C: Outdoor Recreation for America, 1962.

Παραπομπή MLA

Federal Agencies and Outdoor Recreation. Washington, D.C: Outdoor Recreation for America, 1962.

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