APA (7th ed.) Citation

United States. National Park Service & Junior Ranger Program (United States. National Park Service). (2011). Junior Ranger booklet. U.S. Dept. of Interior, National Park Service.

Chicago Style (17th ed.) Citation

United States. National Park Service and Junior Ranger Program (United States. National Park Service). Junior Ranger Booklet. [Page, AZ?]: U.S. Dept. of Interior, National Park Service, 2011.

MLA (9th ed.) Citation

United States. National Park Service and Junior Ranger Program (United States. National Park Service). Junior Ranger Booklet. U.S. Dept. of Interior, National Park Service, 2011.