Cita APA (7a ed.)
Langford, I. H., Bateman, I. J., & Jones, A. P. (1998). Improved estimation of willingness to pay in dichotomous choice contingent valuation studies. Land Economics, 74(1), 65-76.
Cita Chicago Style (17a ed.)
Langford, Ian H., Ian J. Bateman, y Andrew P. Jones. "Improved Estimation of Willingness to Pay in Dichotomous Choice Contingent Valuation Studies." Land Economics 74, no. 1 (1998): 65-76.
Cita MLA (9a ed.)
Langford, Ian H., et al. "Improved Estimation of Willingness to Pay in Dichotomous Choice Contingent Valuation Studies." Land Economics, vol. 74, no. 1, 1998, pp. 65-76.
Precaución: Estas citas no son 100% exactas.