APA (7th ed.) Citation

Otto, L. (1973). Environmental factors in operations to combat oil spills. WMO.

Chicago Style (17th ed.) Citation

Otto, L. Environmental Factors in Operations to Combat Oil Spills. Geneva: WMO, 1973.

MLA (9th ed.) Citation

Otto, L. Environmental Factors in Operations to Combat Oil Spills. WMO, 1973.

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