APA Citation

(1991). Caring for the earth: A strategy for sustainable living. Switzerland: IUCN/ENEP/WWE.

Trích dẫn kiểu Chicago

Caring for the Earth: A Strategy for Sustainable Living. Switzerland: IUCN/ENEP/WWE, 1991.

MLA Citation

Caring for the Earth: A Strategy for Sustainable Living. Switzerland: IUCN/ENEP/WWE, 1991.

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