APA引文
Cunningham, W., & Cunningham, M. A. (2004). Principles of environmental science: Enquiry and applications (2nd ed.). Tata McGraw-Hill.
芝加哥风格引文
Cunningham, William, 与 Mary Ann Cunningham. Principles of Environmental Science: Enquiry and Applications. 2nd ed. New Delhi: Tata McGraw-Hill, 2004.
MLA引文
Cunningham, William, 与 Mary Ann Cunningham. Principles of Environmental Science: Enquiry and Applications. 2nd ed. Tata McGraw-Hill, 2004.
警告：这些引文格式不一定是100％准确.