Citazione Stile APA (7a Edizione)

Cunningham, W. P., & Saigo, B. W. (2001). Environmental science: A global concern (6th ed.). WCB/Mcgraw-Hill.

Citazione stile Chigago Style (17a edizione)

Cunningham, William P., e Barbara Woodworth Saigo. Environmental Science: A Global Concern. 6th ed. Boston, Mass: WCB/Mcgraw-Hill, 2001.

Citatione MLA (9a ed.)

Cunningham, William P., e Barbara Woodworth Saigo. Environmental Science: A Global Concern. 6th ed. WCB/Mcgraw-Hill, 2001.