Citazione Stile APA (7a Edizione)

Wackernagel, M., & Rees, W. (1996). Our ecological footprint: Reducing human impact on the Earth. New Society Publishers.

Citazione stile Chigago Style (17a edizione)

Wackernagel, Mathis, e William Rees. Our Ecological Footprint: Reducing Human Impact on the Earth. Victoria: New Society Publishers, 1996.

Citatione MLA (9a ed.)

Wackernagel, Mathis, e William Rees. Our Ecological Footprint: Reducing Human Impact on the Earth. New Society Publishers, 1996.