Willis, K. G., Button, K. J., & Nijkamp, P. (1999). Environmental valuation. Edward Elgar Pub.
Citación estilo ChicagoWillis, K. G., Kenneth John Button, and Peter Nijkamp. Environmental Valuation. Cheltenham, UK, Northampton, MA: Edward Elgar Pub, 1999.
Cita MLAWillis, K. G., et al. Environmental Valuation. Edward Elgar Pub, 1999.
Warning: These citations may not always be 100% accurate.