Style de citation APA (7e éd.)

21278 WWF, G. L. P. C. (1998). Celebrating gifts to the earth: October 1996 - December 1997. Gland (Suiza).

Style de citation Chicago (17e éd.)

21278 WWF, Gland. Living Planet Campaign. Celebrating Gifts to the Earth: October 1996 - December 1997. Gland (Suiza), 1998.

Style de citation MLA (8e éd.)

21278 WWF, Gland. Living Planet Campaign. Celebrating Gifts to the Earth: October 1996 - December 1997. Gland (Suiza), 1998.

Style de citation IICA/CATIE

21278 WWF, G. L. P. C. 1998. Celebrating gifts to the earth: October 1996 - December 1997. Gland (Suiza).