Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture
Mara, Duncan
Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture - Geneva: World Health Organization, 1989 - 187p.
Science
Sewage Biological treatment
628.2(82.2) / M6
Guidelines for the safe use of wastewater and excreta in agriculture and aquaculture - Geneva: World Health Organization, 1989 - 187p.
Science
Sewage Biological treatment
628.2(82.2) / M6