APA
Urbanus J., Concawe & Urbanus J. (1999). The health effects of PM2.5 (including ultrafine particles). Brussels: Concawe.
Chicago
Urbanus J, Concawe and Urbanus J. 1999. The health effects of PM2.5 (including ultrafine particles). Brussels: Concawe.
Harvard
Urbanus J., Concawe and Urbanus J. (1999). The health effects of PM2.5 (including ultrafine particles). Brussels: Concawe.
MLA
Urbanus J, Concawe and Urbanus J. The health effects of PM2.5 (including ultrafine particles). Brussels: Concawe. 1999.