APA

Karlsson P. E., Plijel H., Belhaj (Mohammed S. & Danielsson H.Economic assessment of the negative impacts of Ozone on crop yields and forest production. A case study of the estate Östads Säteri in southwestern Sweden. : .

Chicago

Karlsson Per Erik, Plijel Hákan, Belhaj (Mohammed Suecia) and Danielsson Helena.Economic assessment of the negative impacts of Ozone on crop yields and forest production. A case study of the estate Östads Säteri in southwestern Sweden. : .

Harvard

Karlsson P. E., Plijel H., Belhaj (Mohammed S. and Danielsson H.Economic assessment of the negative impacts of Ozone on crop yields and forest production. A case study of the estate Östads Säteri in southwestern Sweden. : .

MLA

Karlsson Per Erik, Plijel Hákan, Belhaj (Mohammed Suecia) and Danielsson Helena.: . .