APA ציטוט

Cunningham, W. P., & Saigo, B. W. (1999). Environmental Science. Boston: McGraw-Hill.

Trích dẫn kiểu Chicago

Cunningham, William P., và Barbara Woodworth Saigo. Environmental Science. Boston: McGraw-Hill, 1999.

ציטוט MLA

Cunningham, William P., và Barbara Woodworth Saigo. Environmental Science. Boston: McGraw-Hill, 1999.