Barnes, D. Biological control of nitrogen in wastewater treatment / D. Barne s, P.J. Bliss. - London ; New York : E. & F.N. Spon, 1983. - xi, 146 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0419123504 LCCN: 82-010693 Subjects--Topical Terms: Sewage -- Purification -- Nitrogen removal. Sewage -- Purification Dewey Class. No.: 628.357