Détail du congrès:
Congrès: International specialized conference on design and operation of small wastewater treatment plants, Trondheim NOR, 26-28 june 1989 (1989; NOR) (1989) |
Congrès: International specialized conference on design and operation of small wastewater treatment plants, Trondheim NOR, 26-28 june 1989 (1989; NOR) (1989) |