Hopkins, Edward S.
Water purification control / Edward S. Hopkins. - 3rd ed. - Maltimore : the williams & Wilkings, c 1948. - vii, 289 p. : ill. ; 20 cm.
Includes Index.
323 323
Water--Purification.
Water--Analysis.
628.1 / H774w
Water purification control / Edward S. Hopkins. - 3rd ed. - Maltimore : the williams & Wilkings, c 1948. - vii, 289 p. : ill. ; 20 cm.
Includes Index.
323 323
Water--Purification.
Water--Analysis.
628.1 / H774w