APA (7th ed.) Citation

Berdeen, J. (2015). National tree climbing guide (2015 Electronic edition.). United States Department of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Berdeen, Jerry. National Tree Climbing Guide. 2015 Electronic edition. [Washington, D.C.]: United States Department of Agriculture, Forest Service, 2015.

MLA (9th ed.) Citation

Berdeen, Jerry. National Tree Climbing Guide. 2015 Electronic edition. United States Department of Agriculture, Forest Service, 2015.