APA (7th ed.) Citation

World Meteorological Organization. (1969). Organization of hydrometeorological and hydrological services. Secretariat of the World Meteorological Organization.

Chicago Style (17th ed.) Citation

World Meteorological Organization. Organization of Hydrometeorological and Hydrological Services. Geneva: Secretariat of the World Meteorological Organization, 1969.

MLA (9th ed.) Citation

World Meteorological Organization. Organization of Hydrometeorological and Hydrological Services. Secretariat of the World Meteorological Organization, 1969.