Cita APA

Altaf, A., Jamal, H., & Whittington, D. (1992). Willingness to pay for water in rural Punjab, Pakistan. Washington, D.C.: UNDP-World Bank Water and Sanitation Program the World Bank.

Citación estilo Chicago

Altaf, Anjum, Haroon Jamal, y Dale Whittington. Willingness to Pay for Water in Rural Punjab, Pakistan. Washington, D.C.: UNDP-World Bank Water and Sanitation Program the World Bank, 1992.

Cita MLA

Altaf, Anjum, Haroon Jamal, y Dale Whittington. Willingness to Pay for Water in Rural Punjab, Pakistan. Washington, D.C.: UNDP-World Bank Water and Sanitation Program the World Bank, 1992.