Enlace original:
https://wedocs.unep.org//handle/20.500.11822/29260
United Nations Environment Programme
,
[Lignes directrices sur le traitement et l'elimination des eaux usees dans la region mediterraneenne]
,
[Guidelines on Sewage Treatment and Disposal for the Mediterranean Region - MAP TechnicaL Reports Series No. 152]
,
Guidelines on Sewage Treatment and Disposal for the Mediterranean Region - MAP TechnicaL Reports Series No. 152