APA (7th ed.) Citation

Sachs, W. (2001). Rio + 10 and the North South divide: An essay. Heinrich-Böll-Foundation.

Chicago Style (17th ed.) Citation

Sachs, Wolfgang. Rio + 10 and the North South Divide: An Essay. Berlin: Heinrich-Böll-Foundation, 2001.

MLA (9th ed.) Citation

Sachs, Wolfgang. Rio + 10 and the North South Divide: An Essay. Heinrich-Böll-Foundation, 2001.