Hänvisningar gällande denna post

APA-referens (7:e uppl.)
Bryson, N. S., & Quarles, S. P. (2003). Have you got a license for that tree?: (and can you afford to use it?). Environmental Law Institute.
Chicago-referens (17:e uppl.)
Bryson, Nancy Southard, och Steven P. Quarles. Have You Got a License for That Tree?: (and Can You Afford to Use It?). Washington, D.C.: Environmental Law Institute, 2003.
MLA-referens (9:e uppl.)
Bryson, Nancy Southard, och Steven P. Quarles. Have You Got a License for That Tree?: (and Can You Afford to Use It?). Environmental Law Institute, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.