APA
Florax R. J. (., Willis K. G. (. & Nijkamp P. (. (2002). Comparative environmental economic assessment. Cheltenham: Edward Elgar.
Chicago
Florax Raymond J.G.M (ed), Willis Kenneth G (ed) and Nijkamp Peter (ed). 2002. Comparative environmental economic assessment. Cheltenham: Edward Elgar.
Harvard
Florax R. J. (., Willis K. G. (. and Nijkamp P. (. (2002). Comparative environmental economic assessment. Cheltenham: Edward Elgar.
MLA
Florax Raymond J.G.M (ed), Willis Kenneth G (ed) and Nijkamp Peter (ed). Comparative environmental economic assessment. Cheltenham: Edward Elgar. 2002.