Cita APA (7a ed.)

Vaughan, W., Rodríguez, D., & Darling, A. H. (1999). Willingness To Pay: Referendum Contingent Valuation and Uncertain Project Benefits. Banco Interamericano de Desarrollo.

Cita Chicago Style (17a ed.)

Vaughan, William, Diego Rodríguez, y Arthur H. Darling. Willingness To Pay: Referendum Contingent Valuation and Uncertain Project Benefits. Washington: Banco Interamericano de Desarrollo, 1999.

Cita MLA (9a ed.)

Vaughan, William, et al. Willingness To Pay: Referendum Contingent Valuation and Uncertain Project Benefits. Banco Interamericano de Desarrollo, 1999.