Citazione APA

Grant, W., Perl, A., & Knoepfel, P. (1999). The politics of improving urban air quality. Edward Elgar.

Stile di citazione Chicago

Grant, Wyn, Anthony Perl, e Peter Knoepfel. The Politics of Improving Urban Air Quality. Cheltenham: Edward Elgar, 1999.

Citazione MLA

Grant, Wyn, et al. The Politics of Improving Urban Air Quality. Edward Elgar, 1999.