%0 Conference Proceedings
%T Estimation of Willingness to Pay for Air Quality Improvements  (Case study: Mashhad, Iran
%A Shahnoushi  Froshani, Naser
%A  Motallebi, Marzieh
%A  YAZDAN BAKHSH, SARA
%A  Ashktorab, Niloofar
%J 5th international confrance  SOCAL RESPONSIBILITY AND CURRENT CHALLENGES 2010
%D 2010