Citazione Stile APA (7a Edizione)

Watts, S., & Halliwell, L. (1996). Essential environmental science: Methods and techniques. Routledge.

Citazione stile Chigago Style (17a edizione)

Watts, Simon, e Lyndsay Halliwell. Essential Environmental Science: Methods and Techniques. New York: Routledge, 1996.

Citatione MLA (9a ed.)

Watts, Simon, e Lyndsay Halliwell. Essential Environmental Science: Methods and Techniques. Routledge, 1996.