APA (7th ed.) Citation

UN. (1991). Ground Water In Western And Central Europe (1. Edisyon.). UN.

Chicago Style (17th ed.) Citation

UN. Ground Water In Western And Central Europe. 1. Edisyon. New York: UN, 1991.

MLA (9th ed.) Citation

UN. Ground Water In Western And Central Europe. 1. Edisyon. UN, 1991.

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