APA

Ågren C., Elvingson P., . (1992). Critical loads for air pollutants. Third international NGO strategy seminar on air pollution, Göteborg, Sweden, April 10-12, 1992. Report. Göteborg: Swedish NGO Secretariat on Acid Rain.

Chicago

Ågren Christer, Elvingson Per, . 1992. Critical loads for air pollutants. Third international NGO strategy seminar on air pollution, Göteborg, Sweden, April 10-12, 1992. Report. Göteborg: Swedish NGO Secretariat on Acid Rain.

Harvard

Ågren C., Elvingson P., . (1992). Critical loads for air pollutants. Third international NGO strategy seminar on air pollution, Göteborg, Sweden, April 10-12, 1992. Report. Göteborg: Swedish NGO Secretariat on Acid Rain.

MLA

Ågren Christer, Elvingson Per, . Critical loads for air pollutants. Third international NGO strategy seminar on air pollution, Göteborg, Sweden, April 10-12, 1992. Report. Göteborg: Swedish NGO Secretariat on Acid Rain. 1992.