APA način citiranja

Wackernagel, M. (1996). Our ecological footprint: Reducing human impact on the earth. Gabriola Island: New Society Publishers.

Čikaški stil citiranja

Wackernagel, Mathis. Our Ecological Footprint: Reducing Human Impact On the Earth. Gabriola Island: New Society Publishers, 1996.

MLA način citiranja

Wackernagel, Mathis. Our Ecological Footprint: Reducing Human Impact On the Earth. Gabriola Island: New Society Publishers, 1996.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.