Standard methods for the examination of water and wastewater / prepared and published jointly by American Public Health Association, American Water Works Association, Water Environment Federation. - 20th ed. - Washington : APHA, 1998. - 1 volume (paxinación variada) ; 29 cm.

Bibliogr.

0875532357


Auga--Análise.
Augas residuais--Análise.

Coa tecnoloxía Koha