Cita APA (7a ed.)

Naciones Unidas. (1992). International Conference on Water and the Environment: Development issues for the 21st century (1a ed.). WMO.

Cita Chicago Style (17a ed.)

Naciones Unidas. International Conference on Water and the Environment: Development Issues for the 21st Century. 1a ed. WMO, 1992.

Cita MLA (9a ed.)

Naciones Unidas. International Conference on Water and the Environment: Development Issues for the 21st Century. 1a ed. WMO, 1992.