Citazione Stile APA (7a Edizione)

Kaufman, D. G. (2000). Biosphere 2000: Protecting our global environment (3rd ed.). Kendall/Hunt Publishing Co.

Citazione stile Chigago Style (17a edizione)

Kaufman, Donald G. Biosphere 2000: Protecting Our Global Environment. 3rd ed. Dubuque, Iowa: Kendall/Hunt Publishing Co, 2000.

Citatione MLA (9a ed.)

Kaufman, Donald G. Biosphere 2000: Protecting Our Global Environment. 3rd ed. Kendall/Hunt Publishing Co, 2000.