Water quality control network : proceedings of the meeting held in Ottawa, Canada, 20-24 Feb.,1989 /
Water quality control network : proceedings of the meeting held in Ottawa, Canada, 20-24 Feb.,1989 /
compiled and edited by P. Payment and W.A. Sanchez
- Ottawa : International Development Research Centre, 1990
- 25 p. ; 28 cm.
Water quality--Congresses
Water quality--Congresses
