Johnson, L., & Powell, F. M. (2016). Environmental law. Cengage Learning.
芝加哥风格引文Johnson, Lisa, 与 Frona M. Powell. Environmental Law. Boston, MA: Cengage Learning, 2016.
MLA引文Johnson, Lisa, 与 Frona M. Powell. Environmental Law. Cengage Learning, 2016.
警告：这些引文格式不一定是100％准确.