APA Citation

Jol, A., & Kielland, G. (1997). Air pollution in Europe 1997. Denmark: European Environment Agency.

Chicago Style Citation

Jol, André, and Gabriel Kielland. Air Pollution in Europe 1997. Denmark: European Environment Agency, 1997.

MLA Citation

Jol, André, and Gabriel Kielland. Air Pollution in Europe 1997. Denmark: European Environment Agency, 1997.

Warning: These citations may not always be 100% accurate.