APA (7th ed.) Citation

(1985). Hydrological aspects of drought: A contribution to the Internat. Hydrolog. Programme. Unesco/WMO.

Chicago Style (17th ed.) Citation

Hydrological Aspects of Drought: A Contribution to the Internat. Hydrolog. Programme. Paris: Unesco/WMO, 1985.

MLA (9th ed.) Citation

Hydrological Aspects of Drought: A Contribution to the Internat. Hydrolog. Programme. Unesco/WMO, 1985.

Warning: These citations may not always be 100% accurate.