Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.