Our ecological footprint : : reducing human impact on the earth / / Mathis Wackernagel and William E. Rees ; illustrated by Phil Testemale.

MLA

Wackernagel, Mathis, Phil Testemale, and William E Rees. Our Ecological Footprint : Reducing Human Impact On the Earth. Gabriola Island: New Society Publishers, 1996.

APA

Wackernagel, M., Testemale, P., & Rees, W. E. (1996). Our ecological footprint : reducing human impact on the earth. Gabriola Island: New Society Publishers.

Chicago

Wackernagel, Mathis, Phil Testemale, and William E Rees. Our Ecological Footprint: Reducing Human Impact On the Earth. Gabriola Island: New Society Publishers, 1996.