Citazione Stile APA (7a Edizione)

Hill, M. K. (2010). Understanding environmental pollution (3rd ed.). Univ. Pr.

Citazione stile Chigago Style (17a edizione)

Hill, Marquita K. Understanding Environmental Pollution. 3rd ed. Cambridge: Univ. Pr, 2010.

Citatione MLA (9a ed.)

Hill, Marquita K. Understanding Environmental Pollution. 3rd ed. Univ. Pr, 2010.