APA (7th ed.) Citation
UNEP & UNEP. (2004). Guidelines on sewage treatment and disposal for the Mediterranean region. UNEP.
Chicago Style (17th ed.) Citation
UNEP and UNEP. Guidelines on Sewage Treatment and Disposal for the Mediterranean Region. UNEP, 2004.
MLA (9th ed.) Citation
UNEP and UNEP. Guidelines on Sewage Treatment and Disposal for the Mediterranean Region. UNEP, 2004.
Warning: These citations may not always be 100% accurate.