Cita APA (7a ed.)

Unesco. (1993). Report of the UNESCO/WMO/ICSU International Conference on Hydrology: Towardsthe 21st century; research and operational needs. Unesco.

Cita Chicago Style (17a ed.)

Unesco. Report of the UNESCO/WMO/ICSU International Conference on Hydrology: Towardsthe 21st Century; Research and Operational Needs. París: Unesco, 1993.

Cita MLA (8a ed.)

Unesco. Report of the UNESCO/WMO/ICSU International Conference on Hydrology: Towardsthe 21st Century; Research and Operational Needs. Unesco, 1993.