APA引文

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.

芝加哥风格引文

Bryson, Nancy Southard, 与 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引文

Bryson, Nancy Southard, 与 Steven P. Quarles. Have You Got a License for That Tree?: (and Can You Afford to Use It?). Environmental Law Institute, 2003.