APA

Smith V. k., Desvousges W. H. & Fisher A.Comparison of direct and indirect methods for estimating environmental benefits. : .

Chicago

Smith V kerry, Desvousges William H and Fisher Ann.Comparison of direct and indirect methods for estimating environmental benefits. : .

Harvard

Smith V. k., Desvousges W. H. and Fisher A.Comparison of direct and indirect methods for estimating environmental benefits. : .

MLA

Smith V kerry, Desvousges William H and Fisher Ann.: . .