APA (7th ed.) Citation

Al-Adham, S. S., & unknown. (1989). Tertiary treatment of municipal sewage via slow sand filtration.

Chicago Style (17th ed.) Citation

Al-Adham, Samer Said, and unknown. Tertiary Treatment of Municipal Sewage via Slow Sand Filtration. 1989.

MLA (9th ed.) Citation

Al-Adham, Samer Said, and unknown. Tertiary Treatment of Municipal Sewage via Slow Sand Filtration. 1989.

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