@book{59700,
	author = {Pereira, Luis S (Ed.)_ and Gowing, John W (Ed.)},
	title = {Water and the environment},
	publisher = {E and F N Spon},
	year = {1998},
	address = {London},
	note = {Portugese National committee of the international commission on irrigation and Drainage selected papers of the 1st inter-Regional conference "Environment waters innorative issues in irrigation and drainage" held in Lisbon, Portugal, September 1998}
}