Cita APA (7th ed.)
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.
Cita Chicago (17th ed.)
Bryson, Nancy Southard, i 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.
Cita MLA (9th ed.)
Bryson, Nancy Southard, i Steven P. Quarles. Have You Got a License for That Tree?: (and Can You Afford to Use It?). Environmental Law Institute, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.